[OS X TeX] TeXShop: Undo (Cmd-Z) screws saving

[Alexandru Scorpan]

> After you undo something with Cmd-Z, it sometimes happens that the 
> file does not get saved unless you insist with one or two Cmd-S's.

Yep, it happened again (I might have stumbled upon another occurrence 
earlier, but I got into the habit of going Cmd-Z Cmd-S automatically).
Main file, Cmd-Z Cmd-T, corner red blob reports as saved, result shows 
no change, go back to source, Cmd-S Cmd-T, all OK.

This is TeXShop 1.35e, latest Mac OS X, and all that.  Must mention 
that these things happen only after a good while of using TeXShop.  I 
might be one of the few that stumbled upon this because I seem to spend 
almost six hours daily, with TeXShop running continuously, lots of open 
files, saves, processing etc:  you have to get TeXShop exhausted and 
disgusted before it'll do it.  But this instance was quite clear: I was 
typing in my mini-file that I use to test small things before adding 
them to the main project.

-- Alex

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