Is the 'abandoned' or 'disused' the only lifecycle stage on the object?
I have at least one place (
http://www.openstreetmap.org/way/276425964)
recently where I've tagged
abandoned:highway=tertiary
highway=path
foot=yes
bicycle=no
motor_vehicle=no
smoothness=very_bad
for a road that suffered severe storm damage a few years back,
is blocked with Jersey barriers at both ends, but remains a public
right-of-way where it's lawful to walk (and it's entirely hike-able).
The county still intends to rebuild it, and there are still a couple
of highway number placards on it. A nearby highway=unclassified
is posted as a detour.
I'd imagine that OSMand should show such a beast as a walking
path, perhaps ignoring the 'abandoned' state entirely.
Just posting this to make sure that any fix for this problem doesn't
mess up the current state of an abandoned way.