fix for when list_display_links = None

[bernieke]

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name: Pull request
about: Submit a pull request for this project
assignees: fabiocaccamo

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Describe your changes
Fixes the accordion display mode when list_display_links = None

Related issue
Did not create issue

Checklist before requesting a review

• I have performed a self-review of my code.
• I have added tests for the proposed changes. -> No javascript tests
• I have run the tests and there are not errors. -> Performed manual test

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 90.96%. Comparing base (c0aa5a7) to head (c76f2c6).

Additional details and impacted files

@@           Coverage Diff           @@
##             main     #168   +/-   ##
=======================================
  Coverage   90.96%   90.96%           
=======================================
  Files          11       11           
  Lines         697      697           
=======================================
  Hits          634      634           
  Misses         63       63           

Flag	Coverage Δ
unittests	90.96% <ø> (ø)

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