Split off from bug 43058.
Editing the last equation at
https://www.mediawiki.org/wiki/VisualEditor:TestMath?veaction=edit
if you actually make a change to the text of the equation the displayed equation becomes very jumbled. Any vertical positioning is lost, and text from different lines are overlaid on top of each other.
This happens with Chrome on a Mac.
Version: unspecified
Severity: normal
See Also:
https://bugzilla.wikimedia.org/show_bug.cgi?id=52499