[texworks] external read-access causes TeXWorks to revert open file to old version

[Stefan Müller]

Hi list,

I am experiencing some strange problems when using TeXWorks together with the 
subversion tool Mercurial. Currently, my opinion is that TeXWorks is causing 
the trouble, but I may be wrong.

I open a .tex-document in TeXWorks, change something, save the file and commit 
the change in Mercurial while TeXWorks is still open. The committed changes 
are stored in separate files, the .tex-file itself is not changed during a 
commit. In about half of the commits something goes wrong in TeXWorks [Why? 
The commit is in Mercurial, TeXWorks should have nothing to do with it...]. 
Sometimes TeXWorks just closes itself, which is annoying but not destructive. 
Unfortunately most of the times TeXWorks restores an version of the open file 
which is older than the saved document. If I close TeXWorks at this point no 
harm is done, because this "revert" is not saved [and I am not asked if I want 
to save]. If I don't discover this "revert" in TeXWorks and continue with more 
changes and save, I wreck my .tex-file with old parts of the document.

This issue sometimes even eats new stuff in my document; when I am not ready to 
commit the new part but commit a different section, the new part may be 
"reverted" to an old version where the new part is not there.

I hope I clearly outlined the issue. I am in desperate hope that someone can 
give me advice on how to fix this, as I already lost several days of work 
because of this.

Best regards,
Stefan.