Invalid tag message

[Fabian42]

Two small issues with that text:

1. It says "Value is invalid (Letters and numbers only -- NO hashtag symbol)", but # and many other characters do work. At least I can input # and it's saved, I've also verified that : actually works on DA. (Would be nice if that did not count as part of a title word BTW.)
2. When I edit an existing value, I can do anything invalid and the checkmark is still available. The error only appears when I edit a second time.

[Fabian42]

Just tested and a°!"§$%&/()=?¬¹²³¼½¬{[]}\¸¬¡£¤±°¿¸+#~¯,.-;:_·…×÷<>|@ſ€¶øþ¨æſðʒ^»«¢µ§€®¥ØÞ¨ÆẞЪƷ&^›‹©ºa is apparently a totally valid filter. That's actually quite unfortunate for me, because I'm working on a project to generate these filter files from human-readable files and need some indicator for wildcard yes/no. Space is not great, because it's literally invisible.