Optional Destinations for Extension all Mysteriously Changed to Ring Groups

Has anyone on FreePBX 2.9.0.7/Asterisk 1.8.5 experienced this?

For anyone who may come across this, I have submitted a ticket #5419 to address the issue of empty fields (ie default values) for noanswer_dest, busy_dest, and chanunavail_dest parameters being populated by data from first row entries.