Make sure columns get new width if contents stretch more than original width. (mathjax/MathJax#3423)

[dpvc]

This PR fixes an error with mtable column widths when a cell stretches to wider than the original column's width (e.g., when the contents is a single mo with minsize that makes it bigger).

The problem was that after stretching the mo, the new bounding box width wasn't being computed (OOPS!).

Resolves issue mathjax/MathJax#3423 (this time correctly).

[codecov]

Codecov Report

❌ Patch coverage is 0% with 2 lines in your changes missing coverage. Please review.
✅ Project coverage is 86.51%. Comparing base (b189f7e) to head (7dd72aa).
⚠️ Report is 2 commits behind head on develop.

Files with missing lines	Patch %	Lines
ts/output/common/Wrappers/mtable.ts	0.00%	2 Missing ⚠️

Additional details and impacted files

@@             Coverage Diff             @@
##           develop    #1427      +/-   ##
===========================================
- Coverage    86.51%   86.51%   -0.01%     
===========================================
  Files          340      340              
  Lines        86002    86003       +1     
  Branches      3186     3186              
===========================================
  Hits         74406    74406              
- Misses       11596    11597       +1     

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[pkra]

Thanks for the quick fix, @dpvc. Happy to test develop once the PR lands.

[zorkow]

That does not work for me in the SVG renderer. I can still see the problem for the minimal example:

\begin{CD} 
A @= B
\end{CD}

Hit the approved by accident.

[zorkow]

That does not work for me in the SVG renderer. I can still see the problem for the minimal example:

\begin{CD} 
A @= B
\end{CD}

[dpvc]

@zorkow, it works for me. Are you sure you recompiled before testing? Can you check again?