Draft: Resolve #3504368 "Removing field from LB content type edits associated roles."

Closes #3504368

core/modules/field_ui/tests/modules/a/config/install/media.type.test.yml

+langcode: en
+status: true
+dependencies: {  }
+id: test
+label: 'Test type'
+description: 'Test type.'
+source: test
+source_configuration:
+  test_config_value: Foo
+field_map:
+  metadata_attribute: field_attribute_config_test