[AI] SmartObject with Precondition in a persistent collection crashes editor when exiting PIE

Adding the Precondition to the SmartObject caused an assertion when it was part of a persistent collection. The precondition needs to be able to pass its Activate method to cause the assert.

This behavior is not observed when the SmartObject is registered at runtime.

1. Create an Actor blueprint, add a SmartObject component, tick “Can be Part of Collection”.
2. Create a SmartObjectDefinition and set the Smart Object Component’s reference to it.
3. Add a Precondition for “Match Runtime Object Tags”.
4. Add a slot and a default behaviour and select any valid behaviour class.
5. Setup the behavior class with animation montage or other data it needs to properly compile and pass validation.
6. Create an empty level, drag in the BP.
7. Add a SmartObjectPersistentCollection and click Rebuild Collection.
8. Start PIE.
9. Exit PIE.

Expected Result: The editor stops PIE and returns to normal editor workflow.

Actual Result: Editor crashes.

UnrealEditor_WorldConditions!FWorldConditionContext::Deactivate() [E:\UE_5.3\Engine\Plugins\Runtime\WorldConditions\Source\WorldConditions\Private\WorldConditionContext.cpp:127]
UnrealEditor_WorldConditions!FWorldConditionQueryState::~FWorldConditionQueryState() [E:\UE_5.3\Engine\Plugins\Runtime\WorldConditions\Source\WorldConditions\Private\WorldConditionQuery.cpp:74]
UnrealEditor_SmartObjectsModule!TSet<TTuple<FSmartObjectHandle,FSmartObjectRuntime>,TDefaultMapHashableKeyFuncs<FSmartObjectHandle,FSmartObjectRuntime,0>,FDefaultSetAllocator>::RemoveByIndex() [E:\UE_5.3\Engine\Source\Runtime\Core\Public\Containers\Set.h:878]
UnrealEditor_SmartObjectsModule!USmartObjectSubsystem::UnregisterCollection() [E:\UE_5.3\Engine\Plugins\Runtime\SmartObjects\Source\SmartObjectsModule\Private\SmartObjectSubsystem.cpp:2121]
UnrealEditor_SmartObjectsModule!ASmartObjectPersistentCollection::UnregisterWithSubsystem() [E:\UE_5.3\Engine\Plugins\Runtime\SmartObjects\Source\SmartObjectsModule\Private\SmartObjectPersistentCollection.cpp:603]
UnrealEditor_SmartObjectsModule!ASmartObjectPersistentCollection::EndPlay() [E:\UE_5.3\Engine\Plugins\Runtime\SmartObjects\Source\SmartObjectsModule\Private\SmartObjectPersistentCollection.cpp:518]
UnrealEditor_Engine!AActor::RouteEndPlay() [E:\UE_5.3\Engine\Source\Runtime\Engine\Private\Actor.cpp:2716]
UnrealEditor_UnrealEd!UEditorEngine::TeardownPlaySession() [E:\UE_5.3\Engine\Source\Editor\UnrealEd\Private\PlayLevel.cpp:856]
UnrealEditor_UnrealEd!UEditorEngine::EndPlayMap() [E:\UE_5.3\Engine\Source\Editor\UnrealEd\Private\PlayLevel.cpp:343]
UnrealEditor_UnrealEd!UEditorEngine::Tick() [E:\UE_5.3\Engine\Source\Editor\UnrealEd\Private\EditorEngine.cpp:2244]
UnrealEditor_UnrealEd!UUnrealEdEngine::Tick() [E:\UE_5.3\Engine\Source\Editor\UnrealEd\Private\UnrealEdEngine.cpp:531]
UnrealEditor!FEngineLoop::Tick() [E:\UE_5.3\Engine\Source\Runtime\Launch\Private\LaunchEngineLoop.cpp:5825]
UnrealEditor!GuardedMain() [E:\UE_5.3\Engine\Source\Runtime\Launch\Private\Launch.cpp:188]
UnrealEditor!GuardedMainWrapper() [E:\UE_5.3\Engine\Source\Runtime\Launch\Private\Windows\LaunchWindows.cpp:118]
UnrealEditor!LaunchWindowsStartup() [E:\UE_5.3\Engine\Source\Runtime\Launch\Private\Windows\LaunchWindows.cpp:258]
UnrealEditor!WinMain() [E:\UE_5.3\Engine\Source\Runtime\Launch\Private\Windows\LaunchWindows.cpp:298]
UnrealEditor!__scrt_common_main_seh() [D:\a\_work\1\s\src\vctools\crt\vcstartup\src\startup\exe_common.inl:288]
kernel32
ntdll

[UE-23848] Bug Status

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