Lightroom 9.0 suggests keywords which are not in the keyword list
Hello Community,
since the update to Version 9.0 LR keeps on suggesting Keywords which were entered once but removed from the list afterwards.
As I am no native speaker I added the screenshot below to make clear what I mean. I simulated that I tagged a photo of my friend Sabine errously with "Sabiene". After recognizing my "fault" I removed the keyword from that photo and hit "Purge Unused Keywords". That succesfully removed the keyword from the keyword list but not from the suggestions. At the time the screenshot below was made "Sabiene" wasn't in the keyword list anymore.

Deactivating "Offer suggestions from recently entered values" and "Clear all suggestions lists" don't have any influence on the behaviour. Also this problem seems to affect all of my catalogues. No matter if they were updated from previous version or newly created ones. The only workaround I found until now is to delete the helper.db of the catalogue.
Any suggestions how to solve this issue?
BR
Chris
