Hooks can add tags with improper type
So I stumbled on this bug with my recent upload of https://kara.moe/kara/your-ocean/ea4977f7-0a42-42ae-9da3-e404de24233c
It has the franchise tag Subarashiki Kono Sekai The Animation which is improper as this is a tag for which the only type is Series
This comes from a (bad) hook referencing this tag as a franchise when it can't be.
I think we should check if added tag & type combination is legit before adding those in the backend. We could also validate this erroneous usage of tags because this might not be an isolated case