Edit Media aspectratio-free selection not possible after setting aspect ratio once

[TBschen]

Go to media, edit an image, click on the Edit Image button
If you select part of the image, you can freely decide its selection (works).
If you enter an aspect ratio on the right and delete the numbers afterwards, your aspect ratio is still what was entered before. You can't get a aspectratio-free selection anymore until you reload.

[antpb]

Thanks for this report @TBschen! Great first ticket! @pbiron confirmed that this behavior is indeed as you describe. I’m setting the milestone to 5.4 and will try to get this in the timeline of the release.

[valentinbora]

Reset aspect ratio constraints when one of the width/height fields fails numeric validation.

[antpb]

This works great! In my testing everything works as it should. I definitely confirmed the stuck aspect ratio before the patch and after building with it on my local, it seems to be working as expected. Thank you so much for this! Is this your first props @valentinbora ? If so, what a great first contribution. :D Marking this for commit as I prepare to do all the things to make that happen.

[antpb]

In 47262:

Media: Reset aspect ratio constraints when width and height fields fail numeric validation.

Props TBschen, valentinbora.
Fixes #49073.