Small problem in highway.mapcss

[naoliv]

In JOSM's highway.mapcss we have:

way.major_road[foot?][!sidewalk] {
  throwWarning: tr("major road used with {0}", "{0.tag}");
  suggestAlternative: "sidewalk";
  suggestAlternative: tr("separate footway");
  assertMatch: "way highway=primary foot=yes";
  assertNoMatch: "way highway=primary";
  assertNoMatch: "way highway=primary foot=yes sidewalk=both";
  assertNoMatch: "way highway=primary foot=no";
}

But validating a data with foot=yes we see:

major road used with null, use sidewalk or separate footway instead

(note the null)

[simon04]

In 6692/josm:

fix #9578 - Small problem in highway.mapcss