EQM: When deleting "quizzes" some do not get deleted

[AllanOXDi]

Observed behavior

when deleting quizzes at once, some don't get deleted

Errors a

https://github.com/learningequality/kolibri/assets/103313919/c95645fd-31a9-4b8a-802a-7b2be218dd91

Expected behavior

When a user select all and click delete everything should be deleted

Steps to reproduce

go to add questions > select quizzes and click apply changes. click select all > delete

Context

Develop