I am updating the category of a video by using the Youtube API v3, and apparently, I have to set the title, description, and also tags to avoid them resetting during the video update (this is another annoyance that I don't understand why the API doesn't simply use the existing values instead, but I am ok with that).
I update the video and retrieve the same video data by using the API and tags are all fine.
However, when I go to the Youtube Studio and open the same video in edit mode, then I see the first tag is duplicated!
Any ideas? I would normally trust the data that the API returns but Youtube Studio is not consistent with the API. The worse case, if I have to leave it as is by considering that I'll be updating a lot of videos, is it a huge problem having a single tag duplicated?
Thanks.