Reject unfeasible updates earlier.
Reject unfeasible updates earlier.

dtaht/babeld-shortrtt-metrics,sudomesh/babeld,wlanslovenija/babeld,jech/babeld,wlanslovenija/babeld,jech/babeld,boutier/babeld,Gwendocg/babeldToS,Drooids/babeld,Gwendocg/babeldToS,tcatm/babeld,woniullb/babeld