Why can't mercurial revert some local changes?

Question

This has been bugging me for some time now.
I have a Windows 8 VM running in Parallels with tortoisehg 2.9. It happens frequently that mercurial will insist that there are uncommited local changes, even if I haven't changed anything. I tried "hg revert --all", I tried "hg revert --all -r .", I tried "hg update -c -r .", and still the changes won't go away. If I open the commit window and check the supposed changes, mercurial thinks the entire file is changed, but to the naked eye there don't seem to be any differences. All the lines look like:
-<?xml version="1.0" encoding="utf-8"?>
+<?xml version="1.0" encoding="utf-8"?>
Is this a line ending problem? If so, why doesn't my Windows 7 pc at work ever have this problem? Any insight would be greatly appreciated.

Answer 1

Is this a line ending problem?

It can be this problem most probably - check it with good differ, which can show inline changes and switch detection of EOL-style

If so, why doesn't my Windows 7 pc at work ever have this problem? Any insight would be greatly appreciated.

Win7 repository may not have EOL Extension or have different settings (not =native) in it