Pacemaker logs "No reason to expect node X to be down" when deleting a resource

Issue

• After running pcs resource delete <rsc>, I found the following messages in /var/log/messages:

Dec 10 18:14:01 node1 crmd[9138]:  notice: State transition S_TRANSITION_ENGINE -> S_IDLE | input=I_TE_SUCCESS cause=C_FSA_INTERNAL origin=notify_crmd
Dec 10 18:14:01 node1 crmd[9138]: warning: No reason to expect node 1 to be down
Dec 10 18:14:01 node1 crmd[9138]:  notice: State transition S_IDLE -> S_POLICY_ENGINE | input=I_PE_CALC cause=C_FSA_INTERNAL origin=abort_transition_graph
Dec 10 18:14:01 node1 crmd[9138]: warning: No reason to expect node 2 to be down