Test Plan Reference does not get a `IStringReadOnlyValueAnnotation`

See merge request for unit test that reproduces the issue: !306 (merged)

added Bug label

mentioned in merge request !306 (merged)

changed the description

Thank you for submitting this bug report and unit test for demonstration. Excellent!

I will add this to the current milestone, where it will be evaluated and hopefully soon fixed.

changed milestone to %9.7

closed via commit be148fd0

mentioned in merge request !326 (merged)

mentioned in commit be148fd0