StateTree: Fixed ID clash when duplicating transitions, plus misc editor fixes

- Fix duplicate state
- Fix creating new node IDs when a whole transitions is duplicated
- Fixed state ID leaking into state names, when ID debug display is on
- Fixed updating the state tree view when task type is changed

[FYI] yoan.stamant

[CL 26145413 by mikko mononen in ue5-main branch]

Engine/Plugins/Runtime/StateTree/Source/StateTreeEditorModule/Private/Customizations/StateTreeTransitionDetails.cpp

@@ -242,8 +242,38 @@ void FStateTreeTransitionDetails::OnCopyTransition() const
 	} 
 }
 
+UStateTreeEditorData* FStateTreeTransitionDetails::GetEditorData() const
+{
+	TArray<UObject*> OuterObjects;
+	StructProperty->GetOuterObjects(OuterObjects);
+	for (UObject* Outer : OuterObjects)
+	{
+		UStateTreeEditorData* OuterEditorData = Cast<UStateTreeEditorData>(Outer);
+		if (OuterEditorData == nullptr)
+		{
+			OuterEditorData = Outer->GetTypedOuter<UStateTreeEditorData>();
+		}
+		if (OuterEditorData)
+		{
+			return OuterEditorData;
+		}
+	}
+	return nullptr;
+}
+
 void FStateTreeTransitionDetails::OnPasteTransition() const
 {
+	UStateTreeEditorData* EditorData = GetEditorData();
+	if (!EditorData)
+	{
+		return;
+	}
+	FStateTreeEditorPropertyBindings* Bindings = EditorData->GetPropertyEditorBindings();
+	if (!Bindings)
+	{
+		return;
+	}
+
 	FString PastedText;
 	FPlatformApplicationMisc::ClipboardPaste(PastedText);
 
@@ -267,6 +297,16 @@ void FStateTreeTransitionDetails::OnPasteTransition() const
 		if (FStateTreeTransition* Transition = static_cast<FStateTreeTransition*>(RawData[Index]))
 		{
 			Transition->ID = FGuid::NewGuid();
+
+			for (FStateTreeEditorNode& Condition : Transition->Conditions)
+			{
+				const FGuid OldStructID = Condition.ID;
+				Condition.ID = FGuid::NewGuid();
+				if (OldStructID.IsValid())
+				{
+					Bindings->CopyBindings(OldStructID, Condition.ID);
+				}
+			}
 		}
 	}
 

Engine/Plugins/Runtime/StateTree/Source/StateTreeEditorModule/Private/Customizations/StateTreeTransitionDetails.h

@@ -8,8 +8,7 @@ class IPropertyHandle;
 class IPropertyUtilities;
 class IDetailChildrenBuilder;
 class FDetailWidgetRow;
-class UStateTree;
-class UStateTreeState;
+class UStateTreeEditorData;
 enum class EStateTreeTransitionTrigger : uint8;
 
 /**
@@ -28,6 +27,8 @@ public:
 
 private:
 
+	UStateTreeEditorData* GetEditorData() const;
+
 	FText GetDescription() const;
 
 	EStateTreeTransitionTrigger GetTrigger() const;