id	summary	reporter	owner	description	type	status	priority	milestone	component	version	resolution	keywords	cc
20909	"""No area style for multipolygon"" produces lots of duplicates"	skyper	team	"==== What steps will reproduce the problem?
1. Have a multipolygon with only `access=*`, `area=*`, `lanes=*`, `layer=*`, `level=*`, `lit=*`, `name=*` or `ref=*` (list probably incomplete)
1. Run Validator

==== What is the expected result?
One warning about missing tag describing the area and no informal warning: `No area style for multipolygon`

==== What happens instead?
* Multiple warnings on different warning levels, some I will address in #20902.
 * always but on different warning levels: `Multipolygon tags - tag describing the area is missing` from java TagChecker
 * always informal warning: `No area style for multipolygon` from java MultipolygonTest

==== Please provide any additional information below. Attach a screenshot if possible.
The list of tags is probably not complete and it is not restricted to only one additional tag besides `type=multipolygon`.
With only `surface=*` beside `type`, there exists even a higher mapcss warning, which makes both informal warnings from both java test useless duplicates.
These two java test need to be synced to only produce one warning.

{{{
Relative:URL: ^/trunk
Repository:UUID: 0c6e7542-c601-0410-84e7-c038aed88b3b
Last:Changed Date: 2021-05-17 21:27:21 +0200 (Mon, 17 May 2021)
Revision:17903
Build-Date:2021-05-18 01:31:02
URL:https://josm.openstreetmap.de/svn/trunk
}}}"	defect	new	normal		Core validator	latest		template_report multipolygon area style