Error when run against module with a second module merged into it. #665
Description
The changelog generator rake task seems to throw an error whenever it is run against a module that had previously had a separate orphaned module merged into to it. The error it shows is:
rake aborted! for tags: 50/68
Octokit::NotFound: GET https://api.github.com/repos/puppetlabs/puppetlabs-stdlib/compare/b305bbeac7a0560a271f34026f936b88b88da477...2.1.3: 404 - No common ancestor between b305bbeac7a0560a271f34026f936b88b88da477 and 2.1.3. // See: https://developer.github.com/v3/repos/commits/#compare-two-commits
/Users/david.swan/GitHub/puppetlabs-stdlib/.bundle/gems/ruby/2.4.0/gems/octokit-4.9.0/lib/octokit/response/raise_error.rb:16:in `on_complete'
/Users/david.swan/GitHub/puppetlabs-stdlib/.bundle/gems/ruby/2.4.0/gems/faraday-0.15.2/lib/faraday/response.rb:9:in `block in call'
/Users/david.swan/GitHub/puppetlabs-stdlib/.bundle/gems/ruby/2.4.0/gems/faraday-0.15.2/lib/faraday/response.rb:61:in `on_complete'
/Users/david.swan/GitHub/puppetlabs-stdlib/.bundle/gems/ruby/2.4.0/gems/faraday-0.15.2/lib/faraday/response.rb:8:in `call'
/Users/david.swan/GitHub/puppetlabs-stdlib/.bundle/gems/ruby/2.4.0/gems/faraday-http-cache-2.0.0/lib/faraday/http_cache.rb:290:in `fetch'
/Users/david.swan/GitHub/puppetlabs-stdlib/.bundle/gems/ruby/2.4.0/gems/faraday-http-cache-2.0.0/lib/faraday/http_cache.rb:195:in `process'
/Users/david.swan/GitHub/puppetlabs-stdlib/.bundle/gems/ruby/2.4.0/gems/faraday-http-cache-2.0.0/lib/faraday/http_cache.rb:142:in `call!'
/Users/david.swan/GitHub/puppetlabs-stdlib/.bundle/gems/ruby/2.4.0/gems/faraday-http-cache-2.0.0/lib/faraday/http_cache.rb:115:in `call'
/Users/david.swan/GitHub/puppetlabs-stdlib/.bundle/gems/ruby/2.4.0/gems/faraday-0.15.2/lib/faraday/rack_builder.rb:143:in `build_response'
/Users/david.swan/GitHub/puppetlabs-stdlib/.bundle/gems/ruby/2.4.0/gems/faraday-0.15.2/lib/faraday/connection.rb:387:in `run_request'
/Users/david.swan/GitHub/puppetlabs-stdlib/.bundle/gems/ruby/2.4.0/gems/faraday-0.15.2/lib/faraday/connection.rb:138:in `get'
/Users/david.swan/GitHub/puppetlabs-stdlib/.bundle/gems/ruby/2.4.0/gems/sawyer-0.8.1/lib/sawyer/agent.rb:94:in `call'
/Users/david.swan/GitHub/puppetlabs-stdlib/.bundle/gems/ruby/2.4.0/gems/octokit-4.9.0/lib/octokit/connection.rb:156:in `request'
/Users/david.swan/GitHub/puppetlabs-stdlib/.bundle/gems/ruby/2.4.0/gems/octokit-4.9.0/lib/octokit/connection.rb:19:in `get'
/Users/david.swan/GitHub/puppetlabs-stdlib/.bundle/gems/ruby/2.4.0/gems/octokit-4.9.0/lib/octokit/client/commits.rb:198:in `compare'
/Users/david.swan/GitHub/puppetlabs-stdlib/.bundle/gems/ruby/2.4.0/bundler/gems/github-changelog-generator-20ee04ba1234/lib/github_changelog_generator/octo_fetcher.rb:254:in `block in fetch_compare'
/Users/david.swan/GitHub/puppetlabs-stdlib/.bundle/gems/ruby/2.4.0/bundler/gems/github-changelog-generator-20ee04ba1234/lib/github_changelog_generator/octo_fetcher.rb:396:in `block in check_github_response'
/Users/david.swan/GitHub/puppetlabs-stdlib/.bundle/gems/ruby/2.4.0/gems/retriable-3.1.2/lib/retriable.rb:61:in `block in retriable'
/Users/david.swan/GitHub/puppetlabs-stdlib/.bundle/gems/ruby/2.4.0/gems/retriable-3.1.2/lib/retriable.rb:56:in `times'
/Users/david.swan/GitHub/puppetlabs-stdlib/.bundle/gems/ruby/2.4.0/gems/retriable-3.1.2/lib/retriable.rb:56:in `retriable'
/Users/david.swan/GitHub/puppetlabs-stdlib/.bundle/gems/ruby/2.4.0/bundler/gems/github-changelog-generator-20ee04ba1234/lib/github_changelog_generator/octo_fetcher.rb:395:in `check_github_response'
/Users/david.swan/GitHub/puppetlabs-stdlib/.bundle/gems/ruby/2.4.0/bundler/gems/github-changelog-generator-20ee04ba1234/lib/github_changelog_generator/octo_fetcher.rb:254:in `fetch_compare'
/Users/david.swan/GitHub/puppetlabs-stdlib/.bundle/gems/ruby/2.4.0/bundler/gems/github-changelog-generator-20ee04ba1234/lib/github_changelog_generator/octo_fetcher.rb:319:in `block (3 levels) in fetch_tag_shas_async'
Tasks: TOP => changelog
Encountered this problem when starting a new release on the puppetlabs-stdlib module. Here is a link to my fork of said module and the branch that the changes currently exit on:
https://github.com/david22swan/puppetlabs-stdlib/tree/PreRelease
Attempted to avoid issue by setting it so that only commits made after the last release would be counted but the issue still hit.