New media: The check mark on each image should behave as such

[johnbillion]

If I've selected a few images in the new media modal window and I now want to deselect one, the natural assumption would be that clicking on the check mark in the top right would deselect it, but this isn't the case.

You need to click an image twice to deselect it - once to highlight it and once to deselect it. Definitely not very intuitive.

[nacin]

Great idea. Being able to single-click the checkmark to de-select makes a lot of sense.

[koopersmith]

Yep. It's been on my checklist — thanks for making a ticket. :)

[koopersmith]

In 22706:

Media: Attachment checkboxes now function as such. fixes #22462, see #21390.

[johnbillion]

Nice!