diff --git a/Application.php b/Application.php
index 9d5eedb68..b01effffa 100644
--- a/Application.php
+++ b/Application.php
@@ -986,10 +986,6 @@ protected function doRunCommand(Command $command, InputInterface $input, OutputI
                         });
                     }
                 }
-
-                foreach ($commandSignals as $signal) {
-                    $this->signalRegistry->register($signal, [$command, 'handleSignal']);
-                }
             }
 
             if (null !== $this->dispatcher) {
@@ -1008,6 +1004,10 @@ protected function doRunCommand(Command $command, InputInterface $input, OutputI
                     });
                 }
             }
+
+            foreach ($commandSignals as $signal) {
+                $this->signalRegistry->register($signal, [$command, 'handleSignal']);
+            }
         }
 
         if (null === $this->dispatcher) {
diff --git a/Command/DumpCompletionCommand.php b/Command/DumpCompletionCommand.php
index dc0cfaef7..518d606a0 100644
--- a/Command/DumpCompletionCommand.php
+++ b/Command/DumpCompletionCommand.php
@@ -93,8 +93,14 @@ protected function execute(InputInterface $input, OutputInterface $output): int
         if (!file_exists($completionFile)) {
             $supportedShells = $this->getSupportedShells();
 
-            ($output instanceof ConsoleOutputInterface ? $output->getErrorOutput() : $output)
-                ->writeln(sprintf('<error>Detected shell "%s", which is not supported by Symfony shell completion (supported shells: "%s").</>', $shell, implode('", "', $supportedShells)));
+            if ($output instanceof ConsoleOutputInterface) {
+                $output = $output->getErrorOutput();
+            }
+            if ($shell) {
+                $output->writeln(sprintf('<error>Detected shell "%s", which is not supported by Symfony shell completion (supported shells: "%s").</>', $shell, implode('", "', $supportedShells)));
+            } else {
+                $output->writeln(sprintf('<error>Shell not detected, Symfony shell completion only supports "%s").</>', implode('", "', $supportedShells)));
+            }
 
             return self::INVALID;
         }
diff --git a/Exception/InvalidOptionException.php b/Exception/InvalidOptionException.php
index b2eec6165..5cf62792e 100644
--- a/Exception/InvalidOptionException.php
+++ b/Exception/InvalidOptionException.php
@@ -12,7 +12,7 @@
 namespace Symfony\Component\Console\Exception;
 
 /**
- * Represents an incorrect option name typed in the console.
+ * Represents an incorrect option name or value typed in the console.
  *
  * @author Jérôme Tamarelle <jerome@tamarelle.net>
  */
diff --git a/Helper/ProgressBar.php b/Helper/ProgressBar.php
index 72c26f2f3..93b15279a 100644
--- a/Helper/ProgressBar.php
+++ b/Helper/ProgressBar.php
@@ -466,10 +466,13 @@ private function overwrite(string $message): void
                     }
                     $this->output->clear($lineCount);
                 } else {
-                    for ($i = 0; $i < $this->formatLineCount; ++$i) {
-                        $this->cursor->moveToColumn(1);
-                        $this->cursor->clearLine();
-                        $this->cursor->moveUp();
+                    if ('' !== $this->previousMessage) {
+                        // only clear upper lines when last call was not a clear
+                        for ($i = 0; $i < $this->formatLineCount; ++$i) {
+                            $this->cursor->moveToColumn(1);
+                            $this->cursor->clearLine();
+                            $this->cursor->moveUp();
+                        }
                     }
 
                     $this->cursor->moveToColumn(1);
diff --git a/Resources/completion.bash b/Resources/completion.bash
index bf3edf511..64b87ccf7 100644
--- a/Resources/completion.bash
+++ b/Resources/completion.bash
@@ -11,13 +11,14 @@ _sf_{{ COMMAND_NAME }}() {
     local sf_cmd="${COMP_WORDS[0]}"
 
     # for an alias, get the real script behind it
-    if [[ $(type -t $sf_cmd) == "alias" ]]; then
+    sf_cmd_type=$(type -t $sf_cmd)
+    if [[ $sf_cmd_type == "alias" ]]; then
         sf_cmd=$(alias $sf_cmd | sed -E "s/alias $sf_cmd='(.*)'/\1/")
-    else
+    elif [[ $sf_cmd_type == "file" ]]; then
         sf_cmd=$(type -p $sf_cmd)
     fi
 
-    if [ ! -x "$sf_cmd" ]; then
+    if [[ $sf_cmd_type != "function" && ! -x $sf_cmd ]]; then
         return 1
     fi
 
diff --git a/Tests/ApplicationTest.php b/Tests/ApplicationTest.php
index 70e54870b..ccfdf82ff 100644
--- a/Tests/ApplicationTest.php
+++ b/Tests/ApplicationTest.php
@@ -1945,6 +1945,10 @@ public function testSignalSubscriber()
      */
     public function testSetSignalsToDispatchEvent()
     {
+        if (!\defined('SIGUSR1')) {
+            $this->markTestSkipped('SIGUSR1 not available');
+        }
+
         $command = new BaseSignableCommand();
 
         $subscriber = new SignalEventSubscriber();
@@ -1975,6 +1979,25 @@ public function testSignalableCommandInterfaceWithoutSignals()
         $this->assertSame(0, $application->run(new ArrayInput(['signal'])));
     }
 
+    public function testSignalableCommandHandlerCalledAfterEventListener()
+    {
+        if (!\defined('SIGUSR1')) {
+            $this->markTestSkipped('SIGUSR1 not available');
+        }
+
+        $command = new SignableCommand();
+
+        $subscriber = new SignalEventSubscriber();
+
+        $dispatcher = new EventDispatcher();
+        $dispatcher->addSubscriber($subscriber);
+
+        $application = $this->createSignalableApplication($command, $dispatcher);
+        $application->setSignalsToDispatchEvent(\SIGUSR1);
+        $this->assertSame(1, $application->run(new ArrayInput(['signal'])));
+        $this->assertSame([SignalEventSubscriber::class, SignableCommand::class], $command->signalHandlers);
+    }
+
     /**
      * @group tty
      */
@@ -2073,6 +2096,7 @@ public function isEnabled(): bool
 class BaseSignableCommand extends Command
 {
     public $signaled = false;
+    public $signalHandlers = [];
     public $loop = 1000;
     private $emitsSignal;
 
@@ -2113,6 +2137,7 @@ public function getSubscribedSignals(): array
     public function handleSignal(int $signal): void
     {
         $this->signaled = true;
+        $this->signalHandlers[] = __CLASS__;
     }
 }
 
@@ -2124,6 +2149,7 @@ public function onSignal(ConsoleSignalEvent $event): void
     {
         $this->signaled = true;
         $event->getCommand()->signaled = true;
+        $event->getCommand()->signalHandlers[] = __CLASS__;
     }
 
     public static function getSubscribedEvents(): array
diff --git a/Tests/Helper/ProgressBarTest.php b/Tests/Helper/ProgressBarTest.php
index ef5f06222..17401b887 100644
--- a/Tests/Helper/ProgressBarTest.php
+++ b/Tests/Helper/ProgressBarTest.php
@@ -812,8 +812,10 @@ public function testMultilineFormat()
         $this->assertEquals(
             ">---------------------------\nfoobar".
             $this->generateOutput("=========>------------------\nfoobar").
-            "\x1B[1G\x1B[2K\x1B[1A\x1B[1G\x1B[2K".
-            $this->generateOutput("============================\nfoobar"),
+            "\x1B[1G\x1B[2K\x1B[1A".
+            $this->generateOutput('').
+            $this->generateOutput('============================').
+            "\nfoobar",
             stream_get_contents($output->getStream())
         );
     }
@@ -1124,4 +1126,29 @@ public function testMultiLineFormatIsFullyCleared()
             stream_get_contents($output->getStream())
         );
     }
+
+    public function testMultiLineFormatIsFullyCorrectlyWithManuallyCleanup()
+    {
+        ProgressBar::setFormatDefinition('normal_nomax', "[%bar%]\n%message%");
+        $bar = new ProgressBar($output = $this->getOutputStream());
+        $bar->setMessage('Processing "foobar"...');
+        $bar->start();
+        $bar->clear();
+        $output->writeln('Foo!');
+        $bar->display();
+        $bar->finish();
+
+        rewind($output->getStream());
+        $this->assertEquals(
+            "[>---------------------------]\n".
+            'Processing "foobar"...'.
+            "\x1B[1G\x1B[2K\x1B[1A".
+            $this->generateOutput('').
+            'Foo!'.\PHP_EOL.
+            $this->generateOutput('[--->------------------------]').
+            "\nProcessing \"foobar\"...".
+            $this->generateOutput("[----->----------------------]\nProcessing \"foobar\"..."),
+            stream_get_contents($output->getStream())
+        );
+    }
 }

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