sitting movement sync bug squashed

src/engine/net/client/ClientMessagePump.java

@@ -123,6 +123,7 @@ public class ClientMessagePump implements NetMsgHandler {
         if (pc.isSit()) {
             pc.setCombat(false);
             pc.cancelOnSit();
+            pc.stopMovement(pc.loc);
         }
 
         UpdateStateMsg rwss = new UpdateStateMsg();