fix(sdam): ignore server errors when closing/closed

Author: mbroadst

lib/core/sdam/topology.js

@@ -1039,8 +1039,12 @@ function serverConnectEventHandler(server, topology) {
   };
 }
 
-function serverErrorEventHandler(server /*, topology */) {
+function serverErrorEventHandler(server, topology) {
   return function(err) {
+    if (topology.s.state === STATE_CLOSING || topology.s.state === STATE_CLOSED) {
+      return;
+    }
+
     if (isSDAMUnrecoverableError(err, server)) {
       resetServerState(server, err, { clearPool: true });
       return;