Insight - Filter Assign Scope (strict)/Filter Issue Scope can be impacted by custom field(s) outside the issue context - Regression of Jira bugs

Problem

Insight - Filter Assign Scope Strict can be impacted by custom field(s) outside the context of the issue.

Use Case:

• Object Type X has a one-to-one relationship with Object Type Y
• Create two issue type restricted Insight Objects custom fields viz., Parent CF 1 restricted to Issue Type A and Parent CF 2 restricted to Issue Type B both for Object Type X
• Create another Insight custom field which is not restricted to any issue type viz., Child CF for Object Type Y
• Have an Filter Assign Scope for Child CF with an IQL which depends on both Parent CF 1, Parent CF 2
• Mark the Assign Scope Filter strict
• Create an issue of the Issue Type A with a value in Parent CF 1 which should populate the Child CF due to the Filter Assign Scope (Strict)
• Move the issue to Issue Type B through
  • By editing the ticket and changing the issue type (if they share the same workflow) exploiting JSWSERVER-21241
  • Or, through REST API exploiting JRASERVER-71292

Expected Results:

Insight CF's assign scope does not take Parent CF 1 into consideration as its not in context anymore

Actual Results:

• Parent CF 1 is out of scope it won't show up anymore but Child CF will continue to show the old referenced value
• Select a new value for Parent CF 2 and that would cause the Child CF to now show two Object Type Y values as the assign scope IQL still considers the value in Parent CF 1 even though it's not in context anymore

Workaround

• Use the jira UI to move the ticket back to the previous issue type -> Move the issue back to the new issue type (Jira would remove the field value which is about to go out of context)
• Add the Parent CF 1 in the context of Issue Type B. Edit the issue and remove the value in Parent CF 1 and save. The Assign scope Strict would populate the correct value in Child CF in accordance to Parent CF 2 which is the only parent field in context.

Note: The same behavior will occur also when Manually editing an Issue / Ticket that has "hidden" CF values: if the Filter Issue scope has Placeholders for out of context placeholders... (and Filter Assign Scope is NOT Strict).
when Filter Assign is set to Strict - the issue is more noticeable, due to the automatic populating of the Insight CF...