fix: Issue #641 created by typo in widgets.py

[fsbraun]

Description

This PR fixes issue #641.

I traced it back to a simple typo in widgets.pywhich left the cancel_plugin_url property in the editor's setting empty (but filled the unused property clancel_plugin_url).

In effect, the cmspluings' plugin.js in turn creates a POST request with empty content to the edit endpoint (where the form was originally loaded), effectively deleting the text as opposed to the newly created plugins. The correct behavior would call the cancel_plugin_url endpoint which in turn deletes any added child plugins when cancel is pressed.

References

• The old plugin content is deleted after clicking cancel with new nested plugins #641

[codecov]

Codecov Report

All modified lines are covered by tests ✅

Comparison is base (25e28e3) 76.36% compared to head (17edc8d) 76.36%.

Additional details and impacted files

@@           Coverage Diff           @@
##           master     #652   +/-   ##
=======================================
  Coverage   76.36%   76.36%           
=======================================
  Files          20       20           
  Lines         918      918           
  Branches      123      123           
=======================================
  Hits          701      701           
  Misses        191      191           
  Partials       26       26           

Files	Coverage Δ
djangocms_text_ckeditor/widgets.py	81.53% <ø> (ø)

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[DmytroLitvinov]

I can confirm that the patch works for me 👍.