qct-1.7 fails on launch when the workspace contains unknown files.
AFAIR it used to work correctly in the presence of unknown files while using svn 1.4.x and 1.5.x.
It seems to get an extra space in front of the file name.
% LANG=C qct
Auto-detected Subversion repository
Traceback (most recent call last):
File "/usr/local/bin/qct", line 145, in
dialog = CommitTool(vcs...