RUBY-1887 Rescue AuthError with Mongo::Error when appropriate (#1483)

Author: HanaPearlman

lib/mongo/session.rb

@@ -299,7 +299,7 @@ def end_session
         if within_states?(TRANSACTION_IN_PROGRESS_STATE)
           begin
             abort_transaction
-          rescue Mongo::Error
+          rescue Mongo::Error, Error::AuthError
           end
         end
         @client.cluster.session_pool.checkin(@server_session)
@@ -429,6 +429,9 @@ def with_transaction(options=nil)
               transaction_in_progress = false
               raise
             end
+          rescue Error::AuthError
+            transaction_in_progress = false
+            raise
           end
         end
       end

lib/mongo/session/session_pool.rb

@@ -117,7 +117,7 @@ def end_sessions
               :selector => {endSessions: @queue.shift(10_000).collect { |s| s.session_id }},
               :db_name => Database::ADMIN).execute(server)
         end
-      rescue Mongo::Error
+      rescue Mongo::Error, Error::AuthError
       end
 
       private