Description

There are no changes to the parameters in the .ini file, just the file has been updated. Source control becomes dirty by re-saving the file. 

Steps to Reproduce
  1. Open any project with UE4Editor.
  2. Open Project Settings tab. 

Result:

Update the timestamp of DefaultEngine.ini. 

Expect:

Don't update the timestamp of DefaultEngine.ini. 

Callstack

Caused by FPhysicsSettingsDetails, but seems to have been that way since a 2016 change.

UE4Editor-CoreUObject.dll!UObject::SaveConfig(unsigned __int64 Flags, const wchar_t * InFilename, FConfigCacheIni * Config) Line 2393	C++
UE4Editor-CoreUObject.dll!UObject::UpdateSingleSectionOfConfigFile(const FString & ConfigIniName) Line 2614	C++
UE4Editor-CoreUObject.dll!UObject::UpdateDefaultConfigFile(const FString & SpecificFileLocation) Line 2633	C++
UE4Editor-DetailCustomizations.dll!FPhysicalSurfaceList::RefreshPhysicalSurfaceList() Line 166	C++
UE4Editor-DetailCustomizations.dll!FPhysicsSettingsDetails::CustomizeDetails(IDetailLayoutBuilder & DetailBuilder) Line 294	C++
UE4Editor-PropertyEditor.dll!DetailLayoutHelpers::QueryCustomDetailLayout(FDetailLayoutData & LayoutData, const TMap<TWeakObjectPtr<UStruct,FWeakObjectPtr>,FDetailLayoutCallback,FDefaultSetAllocator,TDefaultMapHashableKeyFuncs<TWeakObjectPtr<UStruct,FWeakObjectPtr>,FDetailLayoutCallback,0> > & InstancedDetailLayoutMap, const TBaseDelegate<TSharedRef<IDetailCustomization,0> > & GenericLayoutDelegate) Line 400	C++
UE4Editor-PropertyEditor.dll!SDetailsViewBase::UpdateSinglePropertyMap(TSharedPtr<FComplexPropertyNode,0> InRootPropertyNode, FDetailLayoutData & LayoutData, bool bIsExternal) Line 400	C++
UE4Editor-PropertyEditor.dll!SDetailsViewBase::UpdatePropertyMaps() Line 362	C++
UE4Editor-PropertyEditor.dll!SDetailsView::PostSetObject() Line 910	C++
UE4Editor-PropertyEditor.dll!SDetailsView::SetObjectArrayPrivate(const TArray<TWeakObjectPtr<UObject,FWeakObjectPtr>,TSizedDefaultAllocator<32> > & InObjects) Line 663	C++
UE4Editor-PropertyEditor.dll!SDetailsView::SetObjects(const TArray<UObject *,TSizedDefaultAllocator<32> > & InObjects, bool bForceRefresh, bool bOverrideLock) Line 412	C++

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Fixed
ComponentTools
Affects Versions4.154.234.24
Target Fix4.24
Fix Commit10202080
Main Commit10202099
Release Commit10202080
CreatedNov 12, 2019
ResolvedNov 14, 2019
UpdatedDec 16, 2019