fix(reimport): do not update finding tags on reimport for matched findings by valentijnscholten · Pull Request #14627 · DefectDojo/django-DefectDojo

@valentijnscholten

…dings

Tags from the report were being appended to matched findings via tags.add(),
causing tags to accumulate across reimports instead of being left unchanged.
This aligns tag handling with how other finding fields are treated on reimport.

Closes DefectDojo#14606

mtesauro