Tags in StudentQuiz

[SchaeferHSNB]

We using your plugin successfully for a semester, but now have a small problem with the tags when preparing for the new semester.

our Livesystem: Moodle 4.1.x; StudentQuiz 5.2.1
also in our Testsystem Moodle 4.5.x StudentQuit 5.3.0

Scenario:
new Course room and therefore empty
Question bank
create new question created with the tags “demo”

If I now filter by tags in the category "top" or "standard", Filter by Tags show “demo” - is correct.

Now I create a new activity StudentQuiz - okay
I select "Create new question", add a question und in the formular under "Tags search" show "demo". However, there are no questions for the StudentQuiz yet - so no tags should be displayed.

Short check in the question bank
Open category "StudentQuiz | Top" and "Filter by tags" is empty - I would expect the same when creating new questions in the study quiz.

So question:
Why are not only the tags of the study quiz category displayed in the student quiz, but all tags of the question collection?