Editor crashes on loading asset bundles when setting the value of AssetBundle.memoryBudgetKB property.

Steps to repro:
1. Open the attached project.
2. Sample scene > Enter the Play mode.
3. Wait until the Terrain to load.
4. Click on the Quit button.

Actual Result:
Editor crashes on clicking on the Quit button.

Expected Result:
The editor should not crash.

Reproducible in:
2021.2.0a10, 2021.2.0a2.

Note: memoryBudgetKB property is introduced in 2021.2.0a2.

Environment:
Occurring on Windows 10 & Mac 10.15.

Stack trace:
========== OUTPUTTING STACK TRACE ==================
0x00007FFE96FFD759 (KERNELBASE) RaiseException
0x00007FF6C12E82AF (Unity) LaunchBugReporter
0x00007FF6C0DAD7CB (Unity) EditorMonoConsole::LogToConsoleImplementation
0x00007FF6C0DADF21 (Unity) EditorMonoConsole::LogToConsoleImplementation
0x00007FF6C21C8F26 (Unity) DebugStringToFilePostprocessedStacktrace
0x00007FF6C21C871B (Unity) DebugStringToFile
0x00007FF6C07A1FFC (Unity) CachedReader::OutOfBoundsError
0x00007FF6C07A2523 (Unity) CachedReader::Read
0x00007FF6C2224DCD (Unity) StreamedBinaryRead::TransferSTLStyleMap<std::map<core::basic_string<char,core::StringStorageDefault<char> >,PPtr<Texture>,std::less<core::basic_string<char,core::StringStorageDefault<char> > >,std::allocator<std::pair<core::basic_string<char,core::StringStorageDefault<char> > const ,PPtr<Texture> > > > >
0x00007FF6C2211D58 (Unity) Shader::Transfer<StreamedBinaryRead>
0x00007FF6C222ED15 (Unity) Shader::VirtualRedirectTransfer
0x00007FF6C0A987BE (Unity) SerializedFile::ReadObject
0x00007FF6C0A7CD66 (Unity) PersistentManager::ReadAndActivateObjectThreaded
0x00007FF6C0A7AEB5 (Unity) PersistentManager::LoadObjectsThreaded
0x00007FF6C0A7ABF4 (Unity) PersistentManager::LoadObjects
0x00007FF6BFEA20A7 (Unity) ProcessAssetBundleEntries
0x00007FF6BFEA0DD8 (Unity) LoadNamedObjectFromAssetBundle
0x00007FF6BFE903A5 (Unity) AssetBundle::LoadAsset_Internal
0x00007FF6C013945F (Unity) AssetBundle_CUSTOM_LoadAsset_Internal
0x000001897EBD8B3C (Mono JIT Code) (wrapper managed-to-native) UnityEngine.AssetBundle:LoadAsset_Internal (UnityEngine.AssetBundle,string,System.Type)
0x000001897EBD8983 (Mono JIT Code) UnityEngine.AssetBundle:LoadAsset (string,System.Type)
0x00000189121289EB (Mono JIT Code) UnityEngine.AssetBundle:LoadAsset (string)
0x000001897EDE94E3 (Mono JIT Code) [C:\Users\GS1799\Downloads\New Unity Project (18)\Assets\LoadAssetBundle.cs:35] LoadAssetBundle/<WebReq>d__2:MoveNext ()
0x000001897EDE917C (Mono JIT Code) UnityEngine.SetupCoroutine:InvokeMoveNext (System.Collections.IEnumerator,intptr)
0x000001897EDE92A7 (Mono JIT Code) (wrapper runtime-invoke) <Module>:runtime_invoke_void_object_intptr (object,intptr,intptr,intptr)
0x00007FFE4915E4F0 (mono-2.0-bdwgc) [c:\build\output\unity-technologies\mono\mono\mini\mini-runtime.c:2812] mono_jit_runtime_invoke
0x00007FFE490E2912 (mono-2.0-bdwgc) [c:\build\output\unity-technologies\mono\mono\metadata\object.c:2921] do_runtime_invoke
0x00007FFE490EB96F (mono-2.0-bdwgc) [c:\build\output\unity-technologies\mono\mono\metadata\object.c:2968] mono_runtime_invoke
0x00007FF6C0A137D4 (Unity) scripting_method_invoke
0x00007FF6C0A0EE51 (Unity) ScriptingInvocation::Invoke
0x00007FF6C09CD9EF (Unity) Coroutine::Run
0x00007FF6C09CDB21 (Unity) Coroutine::Run
0x00007FF6C09CB73C (Unity) Coroutine::ContinueCoroutine
0x00007FF6C0564AB4 (Unity) DelayedCallManager::Update
0x00007FF6C07599E6 (Unity) `InitPlayerLoopCallbacks'::`2'::UpdateScriptRunDelayedDynamicFrameRateRegistrator::Forward
0x00007FF6C0741B1C (Unity) ExecutePlayerLoop
0x00007FF6C0741BF3 (Unity) ExecutePlayerLoop
0x00007FF6C0746D39 (Unity) PlayerLoop
0x00007FF6C0EC8592 (Unity) PlayerLoopController::UpdateScene
0x00007FF6C0EC6A41 (Unity) Application::TickTimer
0x00007FF6C12B9C31 (Unity) MainMessageLoop
0x00007FF6C12BD93A (Unity) WinMain
0x00007FF6C2E458C2 (Unity) __scrt_common_main_seh
0x00007FFE97CD7034 (KERNEL32) BaseThreadInitThunk
0x00007FFE99362651 (ntdll) RtlUserThreadStart
========== END OF STACKTRACE ===========