Swap two lines of code so that if a connection attempt is cancelled, …

…SP does not try to open another connection to cancel the pending connection (#2909)

Frameworks/SPMySQLFramework/Source/SPMySQLConnection.m

@@ -1007,11 +1007,11 @@ - (void)_disconnect
 		return;
 	}
 
-	state = SPMySQLDisconnecting;
-
 	// If a query is active, cancel it
 	[self cancelCurrentQuery];
 
+	state = SPMySQLDisconnecting;
+
 	// Allow any pings or cancelled queries  to complete, inside a time limit of ten seconds
 	uint64_t disconnectStartTime_t = mach_absolute_time();
 	while (![self _tryLockConnection]) {