Parent selector is selecting both child and parent

[naoliv]

Use the example from https://josm.openstreetmap.de/wiki/Help/Styles/MapCSSImplementation#Parentselector

node[traffic_calming] < way[highway] {
        throwWarning: tr("match");
}

with the attached example and see how it's matching/selecting 2 objects (the way (parent) and the node (child))

The description says that In contrast to the child selector, the parent object will be "selected"

Shouldn't only the way be selected here? ie, we should see a warning about one object only (the way)

JOSM:

URL:http://josm.openstreetmap.de/svn/trunk
Repository:UUID: 0c6e7542-c601-0410-84e7-c038aed88b3b
Last:Changed Date: 2017-01-25 02:17:36 +0100 (Wed, 25 Jan 2017)
Build-Date:2017-01-25 02:33:55
Revision:11490
Relative:URL: ^/trunk

Identification: JOSM/1.5 (11490 en) Linux Debian GNU/Linux 9.0 (stretch)
Memory Usage: 314 MB / 10206 MB (52 MB allocated, but free)
Java version: 1.8.0_111-8u111-b14-3-b14, Oracle Corporation, OpenJDK 64-Bit Server VM
Screen: :0.0 1600x900, :0.1 1280x1024
Maximum Screen Size: 1600x1024
Java package: openjdk-8-jre:amd64-8u111-b14-3
Java ATK Wrapper package: libatk-wrapper-java:all-0.33.3-13
VM arguments: [-Dawt.useSystemAAFontSettings=on]
Program arguments: [--language=en]
Dataset consistency test: No problems found

[naoliv]

I did a test with this and now it's selecting only the parent:

src/org/openstreetmap/josm/gui/mappaint/mapcss/Selector.java

@@ -410 +410 @@
                         INode n = wayNodes.get(i);
                         if (left.matches(e.withPrimitive(n))
                             && link.matches(e.withChildAndIndexAndLinkContext(n, i, wayNodes.size()))) {
-                            e.child = n;
+                            e.child = null;
                             e.index = i;
                             e.count = wayNodes.size();
                             return true;