If there is a DSYNC RRset with multiple records, and unsupported scheme/type records follow supported ones, the port and target of the last record were being used to queue the notify. This does not necessarily match the port and target of the supported record. This has been fixed.
Closes #6080
Merge branch '6080-dsync-mismatch-queue' into 'main'
See merge request isc-projects/bind9!12376