Using the git version, this reproduces every time.
Using "Save As" (and then typing in a filename) saves (and overwrites with no warning!) the map that was originally opened. It does not create a new file with the name given after "Save As" is selected.
I'm reasonably certain that's a newly introduced bug. I'd suggest looking at 588ec21d8a36c7193b8ad33857f36d5c3774b755
Using the git version, this reproduces every time.
Using "Save As" (and then typing in a filename) saves (and overwrites with no warning!) the map that was originally opened. It does not create a new file with the name given after "Save As" is selected.
I'm reasonably certain that's a newly introduced bug. I'd suggest looking at 588ec21d8a36c7193b8ad33857f36d5c3774b755