While testing other stuff, I find that if I create a new file (rtf, text, markdown, etc) under “Tags” or any of the sub-tags groups, a replicate will also be created in the inbox of the database, too. I understand that I am not supposed to create new file directly under tags, but in this case I want to.
More strangely, if I delete that file from the inbox, the file in the tags group will be deleted, too (abnormal. Because deleting a replicate shouldn’t delete all instances of a file). But if I delete the same file from the tags group, the file will remain in the inbox (normal).
I tested it with three of my databases and observe the same behaviour.