Fix get_data_shape for list of Data

[rly]

Motivation

Fix #1269

How to test the behavior?

See tests

Checklist

• Did you update CHANGELOG.md with your changes?
• Does the PR clearly describe the problem and the solution?
• Have you reviewed our Contributing Guide?
• Does the PR use "Fix #XXX" notation to tell GitHub to close the relevant issue numbered XXX when the PR is merged?

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 91.68%. Comparing base (4ea9ffa) to head (b74e2f2).
Report is 1 commits behind head on dev.

Additional details and impacted files

@@           Coverage Diff           @@
##              dev    #1270   +/-   ##
=======================================
  Coverage   91.68%   91.68%           
=======================================
  Files          42       42           
  Lines        9597     9598    +1     
  Branches     1933     1933           
=======================================
+ Hits         8799     8800    +1     
  Misses        519      519           
  Partials      279      279           

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