3591734: WSOD AssertionError: assert(!$data instanceof ComponentInputsMapping) in assert() when requesting tmgmt translation job

Narendra Singh Rathorerequested to merge
issue/canvas-3591734:3591734-wsod-assertionerror-assertdata-instanceof-componentinputsmapping into 1.x

[Description of changes] AI-Generated: Yes (Used opencode to fix the error).

Testing instructions

  • Setup TMGMT and all related modules for translation to work on Canvas
  • Create a code component with Date prop with single cardinality.
  • Create a Canvas Page and place above code component and publish the page
  • Go to /admin/tmgmt/sources and Click Request translation button after selected desired language to translate in.
  • Error will appear.

Closes #3591734

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