Steps to replicate the issue (include links if applicable):
- Go to visual editor.
- Use insert button.
- Insert math formula.
- Use some maths formula like matrices.
- Creates a wrong formula, like this: & y \\ z & v \end{bmatrix}\begin{bmatrix} x
What happens?: Error in the math LaTex formula generation.
What should have happened instead?: Obviously fix it.
Software version (on Special:Version page; skip for WMF-hosted wikis like Wikipedia):
Other information (browser name/version, screenshots, etc.): I think this issue is global issue.