"Areas share segment" warning is false positive nowadays

[Klumbumbus]

Multipolygons can be used with splitted outer and inner ways. However the most popular opinion of experienced mappers I often hear nowadays is:

• use MPs only if inner area is present
• use only closed ways for outer and inner
• the closed ways can share nodes with other areas but not with linear features (highways, railways)

This has the following advantages:

• much less complicated
• much simpler maintenance of the areas (huge broken MPs are often a nightmare to repair)

This leads to the result that the "Areas share segment" warning is false positive.
The examples in the attachment should not produce any warning.

This warning often takes up a big amount of all the warnings at info level and can easily reach hundreds of messages. This often leads to ignore the whole info level group because of the huge total number of messages.

URL:http://josm.openstreetmap.de/svn/trunk
Repository:UUID: 0c6e7542-c601-0410-84e7-c038aed88b3b
Last:Changed Date: 2016-10-18 20:32:20 +0200 (Tue, 18 Oct 2016)
Build-Date:2016-10-19 01:34:39
Revision:11146
Relative:URL: ^/trunk

Identification: JOSM/1.5 (11146 de) Windows 7 32-Bit
Memory Usage: 870 MB / 870 MB (257 MB allocated, but free)
Java version: 1.8.0_111-b14, Oracle Corporation, Java HotSpot(TM) Client VM
Screen: \Display0 1680x1050
Maximum Screen Size: 1680x1050
VM arguments: [-Djava.security.manager, -Djava.security.policy=file:<java.home>\lib\security\javaws.policy, -DtrustProxy=true, -Djnlpx.home=<java.home>\bin, -Djnlpx.origFilenameArg=C:\Program Files\josm-latest-bla.jnlp, -Djnlpx.remove=true, -Djava.util.Arrays.useLegacyMergeSort=true, -Djnlpx.heapsize=256m,900m, -Djnlpx.splashport=56854, -Djnlpx.jvm=<java.home>\bin\javaw.exe, -Djnlpx.vmargs=LURqYXZhLnV0aWwuQXJyYXlzLnVzZUxlZ2FjeU1lcmdlU29ydD10cnVlAA==]
Dataset consistency test: No problems found

[Don-vip]

I tend to agree. I downloaded all landuse & natural features of my department and face 14k "areas share segments" issues on a total of 19k "other" issues. It is probably time for this error type to disappear.

[Don-vip]

In 14401/josm:

fix #13818 - remove "Areas share segment" warnings

[skyper]

Ticket #10201 has been marked as a duplicate of this ticket.