Fix getRow method for dynamic table

[ehennestad]

Motivation

Fix getRow method to work also if data is 2D

How to test the behavior?

Show here how to reproduce the new behavior (can be a bug fix or a new feature)

Checklist

• Have you ensured the PR description clearly describes the problem and solutions?
• Have you checked to ensure that there aren't other open or previously closed Pull Requests for the same change?
• If this PR fixes an issue, is the first line of the PR description fix #XX where XX is the issue number?

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 95.24%. Comparing base (bb9acbf) to head (ee12937).
Report is 1 commits behind head on master.

Additional details and impacted files

@@           Coverage Diff           @@
##           master     #648   +/-   ##
=======================================
  Coverage   95.24%   95.24%           
=======================================
  Files         117      117           
  Lines        4901     4902    +1     
=======================================
+ Hits         4668     4669    +1     
  Misses        233      233           

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[bendichter]

Please add a test

[bendichter]

@ehennestad do you know why these errors are occuring?

[ehennestad]

@ehennestad do you know why these errors are occuring?

#637 (comment)