id	summary	reporter	owner	description	type	status	priority	milestone	component	version	resolution	keywords	cc
11985	Support {0}.key/tag/value when comparing key values	naoliv	team	"When using a test like this:

{{{
#!mapcss
*[""contact:phone"" = *phone],
*[""contact:fax"" = *fax],
*[""contact:website"" = *website],
*[""contact:email"" = *email],
*[""contact:facebook"" = *facebook]
*[""contact:twitter"" = *twitter] {
        throwWarning: tr(""{0} and {1} are the same"", ""{0.key}"", ""{1.key}"");
}
}}}

we can see, for example, a warning with a null value: `contact:phone and null are the same` (even when using `1.tag` or `1.value`)

Could JOSM support key/tag/value for cases like this, please?

JOSM:
{{{
Repository Root: http://josm.openstreetmap.de/svn
Build-Date: 2015-10-15 01:32:10
Last Changed Author: Don-vip
Revision: 8882
Repository UUID: 0c6e7542-c601-0410-84e7-c038aed88b3b
Relative URL: ^/trunk
URL: http://josm.openstreetmap.de/svn/trunk
Last Changed Date: 2015-10-15 01:02:36 +0200 (Thu, 15 Oct 2015)
Last Changed Rev: 8882

Identification: JOSM/1.5 (8882 pt_BR) Linux Debian GNU/Linux unstable (sid)
Memory Usage: 554 MB / 3641 MB (337 MB allocated, but free)
Java version: 1.7.0_85, Oracle Corporation, OpenJDK 64-Bit Server VM
Java package: openjdk-7-jre:amd64-7u85-2.6.1-5
VM arguments: [-Dawt.useSystemAAFontSettings=on, -Dsun.java2d.opengl=true]
Dataset consistency test: No problems found
}}}"	enhancement	closed	normal		Core validator		worksforme	mapcss