Repro:
- Create a page with text below:
<math>
\begin{matrix}
x & y \\
z & v
\end{matrix}
</math>
- Default rendering, in PHP parser and Parsoid (VE initial state):
x y
z v
- VE edit this matrix, change v to uv.
- Edited block becomes:
x amp; y
z amp; uv
(After saving it works fine)
Version: unspecified
Severity: minor
See Also:
https://bugzilla.wikimedia.org/show_bug.cgi?id=54577