Steps to reproduce: Add an image with an ampersand in the url to a post (e.g. https://waindigo.org/feature.php?text=This is a test&premium=1&even=1). Click the image to edit the image. Don't change anything and click insert. Repeat steps 2-3 as many times as you like to make it even worse. After step 1, the above image will look like this: But after step 3, it will look like this: because the ampersands have been incorrectly replaced with & and are now being ignored. It doesn't do this with URLs.