[OSM-dev] Complex JOSM filtering rules

[John Smith]

Sorry for posting to this list, but I didn't feel like joining yet
another mailing list for one question.

I want to be able to hide all admin boundaries in JOSM using the
filter method, except admin boundaries that have highway=* or
waterway=* or natural=* tags also, I haven't been able to figure out
the right combination of filters to achieve this.