New enabled View modes for bundle have duplicate fields in layout

Problem/Motivation

1. Use standard profile
2. enable layout builder
3. enable layout builder for Articles
4. Under "CUSTOM DISPLAY SETTINGS" enable Search index
5. Goto Search Index display - admin/structure/types/manage/article/display/search_index
6. Layout Builder already enabled for View Mode(not sure if this is intended behavior but seems good)
7. Click Manage Layout
8. All article fields will show 2x in layout

Proposed resolution

Fix

Remaining tasks

User interface changes

API changes

Data model changes