Crash on AnimationClip.SampleAnimation().Unity version: 2018.2.3f1

Unity version: 2018.2.3f1
code:

public class CrashTest : MonoBehaviour {

public AnimationClip targetAnimClip = null;
// Use this for initialization
void Start () {
if (targetAnimClip != null)
targetAnimClip.SampleAnimation(gameObject, 0);
}
}

the gameObject is the model in the scene and clip is the model's clip.

crash log:
========== OUTPUTTING STACK TRACE ==================

0x00000001419EA1B5 (Unity) UnityEngine::Animation::SetBoundCurveFloatValue
0x00000001419ADFC4 (Unity) AnimationBinder::SetFloatValue
0x00000001419D80AF (Unity) SampleAnimation
0x000000014179E7DA (Unity) AnimationClip_CUSTOM_SampleAnimation
0x00000000330B4469 (Mono JIT Code) (wrapper managed-to-native) UnityEngine.AnimationClip:SampleAnimation (UnityEngine.GameObject,UnityEngine.AnimationClip,single,UnityEngine.WrapMode)
0x00000000330B41D0 (Mono JIT Code) [C:\buildslave\unity\build\Runtime\Animation\ScriptBindings\AnimationClip.bindings.cs:24] UnityEngine.AnimationClip:SampleAnimation (UnityEngine.GameObject,single)
0x00000000330B4097 (Mono JIT Code) [D:\Unity Projects\Survival War\Assets\SpriteBakingStudio\CrashTest.cs:11] CrashTest:Start ()
0x000000000BA074F2 (Mono JIT Code) (wrapper runtime-invoke) object:runtime_invoke_void__this__ (object,intptr,intptr,intptr)
0x000007FED9DE671B (mono) [c:\buildslave\mono\build\mono\mini\mini.c:4937] mono_jit_runtime_invoke
0x000007FED9D38A71 (mono) [c:\buildslave\mono\build\mono\metadata\object.c:2623] mono_runtime_invoke
0x0000000140C0500A (Unity) scripting_method_invoke
0x0000000140BFD1C0 (Unity) ScriptingInvocation::Invoke
0x0000000140BB9108 (Unity) MonoBehaviour::InvokeMethodOrCoroutineChecked
0x0000000140BB929A (Unity) MonoBehaviour::InvokeMethodOrCoroutineChecked
0x0000000140BBD667 (Unity) MonoBehaviour::Start
0x0000000140BB51E9 (Unity) MonoBehaviour:elayedStartCall
0x00000001406F1087 (Unity) DelayedCallManager::Update
0x00000001409687AC (Unity) `InitPlayerLoopCallbacks'::`2'::EarlyUpdateScriptRunDelayedStartupFrameRegistrator::Forward
0x00000001409680E7 (Unity) ExecutePlayerLoop
0x0000000140968196 (Unity) ExecutePlayerLoop
0x000000014096AA3C (Unity) PlayerLoop
0x000000014144C52A (Unity) PlayerLoopController::UpdateScene
0x000000014143AFAD (Unity) PlayerLoopController::EnterPlayMode
0x00000001414475C8 (Unity) PlayerLoopController::SetIsPlaying
0x000000014144AB7D (Unity) Application::TickTimer
0x00000001415E99E5 (Unity) MainMessageLoop
0x00000001415EBDCC (Unity) WinMain
0x000000014242DACA (Unity) __scrt_common_main_seh
0x0000000076A559CD (kernel32) BaseThreadInitThunk
0x000000007716A561 (ntdll) RtlUserThreadStart

 

I found a way to fixed the crash: Add a animator component to the object and set a empty controller and avatar,then disable this component(don't delete this component). it will not crash again. I hope unity will fix this bug