id	summary	reporter	owner	description	type	status	priority	milestone	component	version	resolution	keywords	cc
20193	transformer key should only be used on nodes	francois.lacombe	team	"Dear maintainers,

JOSM currently warns when power=transformer is used on a way/area/relation.
It's not effective with transformer=* key which is restricted to nodes as well.
https://wiki.openstreetmap.org/wiki/Key:transformer

For instance, a closed perimeter with power=substation + transformer=* should at least raise a warning about transformer=* key not used on a node.

This hasn't be part of #15367 and #12386

Thanks in advance for any fix

François"	enhancement	closed	normal	20.12	Core validator		fixed	power, transformer