tag implication #9219 princess_connect!_re:dive -> princess_connect! has been rejected.
Reason: Most posts are already tagged with both.
There is no clear way to distinguish that art is related to PriConne but not PriConne Re:Dive, or vice versa, unless it includes a character new to Re:Dive or is in-game official art that was not reused (quite a bit of the art was reused.) In that sense it's a somewhat similar situation to sekaiju no meikyuu and its immediate sequel, which has no tag.
Since the original PriConne wasn't very popular and has been shut down for years, an argument could even be made for an alias if anyone thinks that's more appropriate.
EDIT: The tag implication princess_connect!_re:dive -> princess_connect! (forum #157217) has been approved by @Hillside_Moose.
Updated by DanbooruBot