When writing to a daemon with read only = false and uid = root and -g,

was not preserving group permisions.  Bug was introduced March 1 in
version 1.100 of rsync.c with an error in re-ordering of the boolean
expressions.  In order to completely preserve the earlier semantics,
change_gid should depend on "(am_root || !am_daemon)", but I don't see why
group ownership should behave differently in a non-root daemon.