Except, it was fixed for the case when the focus was on the other panel; but it was not for the case when the focus was on another application. So if I switch to another program and then click the same file on the panel that had focus before editing is toggled.
Also, regarding full row select, that's turning it off, it might be Ok, though a bit inconvenient, as some filenames are really short, but the problem is I keep getting the stupid situation when first I have a file selected (and focused!), then I select 2 other files with the mouse, note that at this moment the previously selected file is still focused (has the dotted outline), then I hit enter and instead of copying the 2 selected files (shown on the blue background), I only copy the previously selected file or, if it was a (parent) directory, I just go to that directory!! I tried the trick with full row select on and it didn't work: as soon as I start selecting, the previously focused file loses the focus.
And finally, if you can prevent editing a filename when the click goes to any other column than "Name Ext" (full row select on) that actually would be prefect, as full row select is more convenient.
Happy New Year!