tags shown twice inside tags filter fields

[valentijnscholten]

Reproducible on https://demo.defectdojo.org

1. Goto
2. Select some tags from the dropdown
3. Observe they are shown correctly (and only once)

4. Click "Apply filters"
5. Observer page refresh, open filter section again, observer tags are now duplicated/shown twice

There's some javascript running to initialize these Selectv4 fields. Looks like it might be running twice as also the entries in the dropdown are duplicated.

Please note this a different issues from what is reported in #12601. But it might actually have the same root cause