When we know we failed to apply a configuration file, do not take any

failover decision as it will most likely result in a wrong decision
being taken.

pglookout/pglookout.py

@@ -478,6 +478,10 @@ def check_cluster_state(self):
             self.consider_failover(own_state, master_node, standby_nodes)
 
     def consider_failover(self, own_state, master_node, standby_nodes):
+        if self._config_version > self._config_version_applied:
+            self.log.warning(
+                "We couldn't apply the latest config version, do not make any decision with outdated config"
+            )
         if not master_node or not master_node.get("connection"):
             # no master node at all in the cluster?
             self.log.warning(