- 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.
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.