[SR-Users] lookup(), received an $du

Hi, Some interesting behavior with kam-3.0, which I haven't experienced with <= 1.5: Let's say I have two subscribers A and B registered. A has a received-value in location table, B has it set to NULL. If I call lookup() for A, $ru is set to the registered contact, and $du is set to the received-value. When for example A is busy, I catch it with a failure route and rewrite $ru to B. Calling lookup() again sets my $ru to the contact of B, but since the received-value of B is NULL in the DB, the $du is still pointing to the received-value of A, instead of being set to null. A quick-fix is to set $du to null before calling lookup(), but I'm wondering if this is a bug or intended behavior? Thanks, Andreas