id	summary	reporter	owner	description	type	status	priority	milestone	component	version	resolution	keywords	cc
11234	Validator should warn when key is # or +	daganzdaanda	team	"I've just been fixing a number of buildings that had a #=yes tag. ( https://www.openstreetmap.org/changeset/29472433 )
I tested adding this to a building, and the validator did not complain when I uploaded it. 
Most probably these keys come from missing the ""Enter"" key on a German keyboard. I imagine that in the same way one could arrive at ""+"" as a key. There is no warning message for ""+"" as well.

Could you add a warning when there is a key ""#"" or ""+""?

Maybe other keyboard layouts could be taken into account, too. Or be even more general and warn about all single letter keys, or keys with special letters apart from "":"" and ""_"""	enhancement	closed	normal	15.04	Core validator	tested	fixed	mistyped key	lists@…