LevelSequence Editor consumes input, even if the user last focused the Level Viewport

LevelSequenceEditor has input priority over the Level viewport and other editor modules even though the Level viewport has been the last one selected.

An example would be a cut operation. If you have an actor inside a Level and a track inside the Level Sequence, selecting the actor and executing a Cut() operation would expect to cut the actor, but instead it cuts the track.

1- Open an empty project
2- Add any actor to your map (Cube StaticMeshActor for example)
3- Create and open a LevelSequence
4- Add your actor to the LevelSequence
5- Select your actor in the viewport (this ensures the viewport has the focus)
6- Hit CTRL+X
7- The actor track in the level sequence is removed, instead of removing the actor from the viewport and keeping an invalid actor track.

Non-fatal, callstack is just for reference of the described behavior

FSequencer::CutSelection() Sequencer.cpp:10176 [Inlined] Invoke(void (FSequencer::)(), FSequencer *&) Invoke.h:66 [Inlined] UE::Core::Private::Tuple::TTupleBase::ApplyAfter(void (FSequencer::&)(), FSequencer *&) Tuple.h:309 V::TBaseSPMethodDelegateInstance::ExecuteIfSafe() DelegateInstancesImpl.h:298 [Inlined] TDelegate::ExecuteIfBound() DelegateSignatureImpl.inl:570 FUIAction::Execute() UIAction.h:139 FUICommandList::ConditionalProcessCommandBindings(FKey, bool, bool, bool, bool, bool) UICommandList.cpp:235 FUICommandList::ProcessCommandBindings(FKey, const FModifierKeysState &, const bool) UICommandList.cpp:190 FSequencerEdMode::InputKey(FEditorViewportClient *, FViewport *, FKey, EInputEvent) SequencerEdMode.cpp:217 ULegacyEdModeWrapper::InputKey(FEditorViewportClient *, FViewport *, FKey, EInputEvent) LegacyEdMode.cpp:194 ??R<lambda_1>@?1??InputKey@FEditorModeTools@@QEAA_NPEAVFEditorViewportClient@@PEAVFViewport@@UFKey@@W4EInputEvent@@N@Z@QEBA@PEAVUEdMode@@@Z(UEdMode *) EditorModeManager.cpp:1404 [Inlined] UE::Core::Private::Function::TFunctionRefBase::operator()(UEdMode *) Function.h:555 FEditorModeTools::ForEachEdMode(TFunctionRef<…>) EditorModeManager.cpp:636 FEditorModeTools::InputKey(FEditorViewportClient *, FViewport *, FKey, EInputEvent, bool) EditorModeManager.cpp:1399 FEditorViewportClient::Internal_InputKey(const FInputKeyEventArgs &) EditorViewportClient.cpp:3039 FLevelEditorViewportClient::InputKey(const FInputKeyEventArgs &) LevelEditorViewport.cpp:3545 FSceneViewport::OnKeyDown(const FGeometry &, const FKeyEvent &) SceneViewport.cpp:1066 SViewport::OnKeyDown(const FGeometry &, const FKeyEvent &) SViewport.cpp:287 [Inlined] FSlateApplication::ProcessKeyDownEvent::l22::<lambda_2>::operator()(const FArrangedWidget &, const FKeyEvent &) SlateApplication.cpp:4789 ??$Route@VFReply@@VFBubblePolicy@FEventRouter@@UFKeyEvent@@V<lambda_2>@?BG@??ProcessKeyDownEvent@FSlateApplication@@QEAA_NAEBU4@@Z@@FEventRouter@@SA?AVFReply@@PEAVFSlateApplication@@VFBubblePolicy@0@UFKeyEvent@@AEBV<lambda_2>@?BG@??ProcessKeyDownEvent@2@QEAA_NAEBU4@@Z@W4ESlateDebuggingInputEvent@@@Z(FSlateApplication *,FBubblePolicy,FKeyEvent,const <lambda_2> &,ESlateDebuggingInputEvent) SlateApplication.cpp:447 [Inlined] FEventRouter::RouteAlongFocusPath(FSlateApplication *, FBubblePolicy, FKeyEvent, const <lambda_2> &, ESlateDebuggingInputEvent) SlateApplication.cpp:416 FSlateApplication::ProcessKeyDownEvent(const FKeyEvent &) SlateApplication.cpp:4785 FSlateApplication::OnKeyDown(const int, const unsigned int, const bool) SlateApplication.cpp:4696 FWindowsApplication::ProcessDeferredMessage(const FDeferredWindowsMessage &) WindowsApplication.cpp:2075 FWindowsApplication::DeferMessage(TSharedPtr<…> &, HWND_ *, unsigned int, unsigned long long, long long, int, int, unsigned int) WindowsApplication.cpp:2750 FWindowsApplication::ProcessMessage(HWND__ *, unsigned int, unsigned long long, long long) WindowsApplication.cpp:1919 [Inlined] WindowsApplication_WndProc(HWND__ *, unsigned int, unsigned long long, long long) WindowsApplication.cpp:923 FWindowsApplication::AppWndProc(HWND__ *, unsigned int, unsigned long long, long long) WindowsApplication.cpp:928 <unknown> 0x00007ff81e0aef5c <unknown> 0x00007ff81e0ae684 [Inlined] WinPumpMessages() WindowsPlatformApplicationMisc.cpp:116 FWindowsPlatformApplicationMisc::PumpMessages(bool) WindowsPlatformApplicationMisc.cpp:145 FEngineLoop::Tick() LaunchEngineLoop.cpp:5844 [Inlined] EngineTick() Launch.cpp:61 GuardedMain(const wchar_t *) Launch.cpp:182 LaunchWindowsStartup(HINSTANCE__ *, HINSTANCE__ *, char *, int, const wchar_t *) LaunchWindows.cpp:247 WinMain(HINSTANCE__ *, HINSTANCE__ *, char *, int) LaunchWindows.cpp:298 [Inlined] invoke_main() 0x00007ff66ea7a37a __scrt_common_main_seh() 0x00007ff66ea7a359 <unknown> 0x00007ff81dfe7374 <unknown> 0x00007ff81fb7cc91