ResetToFbxOnMaterialConflict does not work when reimporting in Python

Right now when we reimport a staticmesh in python, the given import options are ignored, resulting in the ResetToFbxOnMaterialConflict reimport setting not working.

The options given to the ImportAssetTask should work regardless if we are importing or reimporting.

1. Extract the attached [Link Removed] archive.
2. In the fbx_import_overrideMaterial.py , change the file path (task.filename) of both import tasks so that the path properly point to "./Step1/export_MatA.fbx" and "./Step2/export_MatA.fbx"
3. In UE4 editor, create a "test" folder under "Content".
4. In UE4 editor, run the fbx_import_overrideMaterial.py in the python console.
5. Open the static mesh editor of the imported asset "export_MatA"

Result : The static mesh's material slot is named "lambert1" (name of the slot from the fbx in folder "step1")
Expected: The static mesh's material slot should be named "albert" (name of the slot from the fbx in folder "step2")