In short, entering isn’t actually [ Save ] ing it. It’s a little quirky, but it’s not the only application that does that. It’s “what is in focus”, and Qt seems to do things a little bit ‘different’ and the native programming environment and the way objects behave.
You enter/select the tag, click down there in the blue, type in text, and figure Return will accept it and close the dialog.
Not with Qt5 based stuff on Mac OS X. If you click outside of that edit box, then the whole dialog is now the focal piece and that Return key will trigger the default option. In this case, [ Save ]
Qt5 … is … not a “cutie”. It makes me wanna scream Many times.
Behavior across it’s three platforms are not consistent. Linux & Windows are pretty much in parity, but Macintosh is not, and there are little snippets in the source code about how "Mac blah blah… different, something, whatever and this is why we don’t… "
At least it uses native objects and not that totally crappy look of Java based UI objects. Too bad it still kind of acts like it’s Java though.