Created attachment 160132 [details]
Capture showing the offending dialog

This is a bug I know from the first version and it's really annoying.
When I commit, the dialog where you put a "Commit Message", details of the commiter and the list of files to commit (where you can exclude files from commit, etc.) doesn't allow resizing of the "subdialog" areas, whereas usually this is allowed. For instance, you cannot resize the area corresponding to the list of files and make it larget in order to get a clearer vision of what your are going to commit while reduzing the area assigned for the commit message, which takes roughly a 65% of the dialog although the typical size of the message itself is a couple of lines of text or less. You can resize the perimeter of the full dialog itself, but you won't have control over those specific areas, so they will resize at their way. It should be allowed to resize them at user's desire.