[修复]1. 修复重复打开一个界面出现两个界面的问题

GameFrameX/GameFrameX.Unity#27

Author: AlianBlank

Runtime/UIForm.cs

@@ -197,7 +197,11 @@ protected virtual void InitView()
         public void Init(int serialId, string uiFormAssetName, IUIGroup uiGroup, Action<IUIForm> onInitAction, bool pauseCoveredUIForm, bool isNewInstance, object userData, bool isFullScreen = false)
         {
             m_UserData = userData;
+            if (serialId >= 0)
+            {
             m_SerialId = serialId;
+            }
+
             m_PauseCoveredUIForm = pauseCoveredUIForm;
             m_UIGroup = uiGroup;
             if (m_IsInit)