Original reply:

Hey there! I just want to let you and future readers know that database corruption with Tusk is completely impossible.

The reviewer above simply got their keyfile and database mixed up. When tusk tried to decrypt their database, either they tried to decrypt their keyfile instead of their database or tried to use their database as a keyfile.

Your keyfile goes in the "manage keyfile" tab.
Your database goes in the "manage databases" tab.

Please be aware that Tusk cannot under any circumstances corrupt your keepass db. It does not have write access to any cloud providers or direct filesystem access, and cannot modify your keepass db in any way. You should always keep a backup anyway, but Tusk never requests write permissions to any third party storage.

Update:
Thanks for updating your review!! Most people never bother doing that :D