Steps to reproduce:
  *  Add files test.c and test.cpp to the repository.
  *  Start UI and view Files.

Expected results:
  *  Files test.c and test.cpp are both listed.

Actual results:
  *  Only file test.c is listed.

It seems like only the first file (in collating order) is listed for multiple files with the same name and different extensions with a common initial substring. Clicking on "All" to show the union of all files from all check-ins displays both files.