So I created a Drafts category and set it as a Shared drafts category in admin settings.
Then I filled in the topic:
created a topic, saved it,
set a category to publish in the future
set a tag
saved the topic.
While saving the draft I saw that for 1 second that the tag was visible, but next second it dissapeared.
Any ideas what could prevent me from saving a tag within a draft topic?
If I want to publish the post in a future, in a draft mode I can’t set a category at this step.
Firstly, I need to save it in the Drafts category not to publish the post immediately.
Then I edit the draft and choose the category in a special menu (not an ordinary in a composer).
When you chose the Destination category, you can edit the draft post and choose necessary tags that are loaded from the destination category. Choose smth, save it. Pay attention that while saving the chosen tags are visible and then dissapear.