Complain about addr:housename matching addr:housenumber and differing solely by capitalization

[mkoniecz]

What steps will reproduce the problem?

1. Create closed way
2. Add to it addr:housename=2D and addr:housenumber=2d
3. Run validator

What is the expected result?

Validator complains that addr:housename and addr:housenumber are suspiciously similar.

What happens instead?

Nothing. Note that in case of exact match validator complains already.

Please provide any additional information below. Attach a screenshot if possible.

triggered by ​https://www.openstreetmap.org/way/283874017/history

Relative:URL: ^/trunk
Repository:UUID: 0c6e7542-c601-0410-84e7-c038aed88b3b
Last:Changed Date: 2020-06-13 13:23:27 +0200 (Sat, 13 Jun 2020)
Revision:16613
Build-Date:2020-06-14 01:30:46
URL:https://josm.openstreetmap.de/svn/trunk

Identification: JOSM/1.5 (16613 en_GB) Linux Ubuntu 20.04 LTS
Memory Usage: 274 MB / 976 MB (128 MB allocated, but free)
Java version: 11.0.7+10-post-Ubuntu-3ubuntu1, Ubuntu, OpenJDK 64-Bit Server VM
Look and Feel: javax.swing.plaf.metal.MetalLookAndFeel
Screen: :0.0 1920x1080 (scaling 1.0x1.0)
Maximum Screen Size: 1920x1080
Best cursor sizes: 16x16 -> 16x16, 32x32 -> 32x32
Java package: openjdk-11-jre:amd64-11.0.7+10-3ubuntu1
Java ATK Wrapper package: libatk-wrapper-java:all-0.37.1-1
libcommons-logging-java: libcommons-logging-java:all-1.2-2
fonts-noto: fonts-noto:-
Dataset consistency test: No problems found

Plugins:
+ buildings_tools (35474)
+ measurement (35405)
+ reverter (35487)
+ todo (30306)

[Klumbumbus]

Hm. It seems the combination of "de-referencing" * and flags is not yet supported via mapcss. I tried

*[a][b][a =~ */(?i)b/] {
    throwWarning: tr("Same value of {0} and {1}", "{0.key}", "{1.key}");
    assertMatch: "node a=1 b=1";
    assertMatch: "node a=1a b=1A";
    assertNoMatch: "node a=1 b=2";
}

but JOSM throws a NPE.