If the number of (nested) files in a subfolder exceeds 64k, `file.getFilteredFileList` throws an error at https://github.com/requirejs/r.js/blob/master/build/jslib/node/file.js#L131 ``` { [Error: RangeError: Maximum call stack size exceeded] originalError: [RangeError: Maximum call stack size exceeded] } ``` We encountered this after adding several new libraries to node_modules, resulting in an attempt to push 140k dirFiles onto the files array.