Is this by design? When previewing geometry, basemap is added to map twice

[ThomasColson]

In Pro 2.3.2, with a map with one SDE layer and no base map, when I go into Cat view, and select show metadata -> Geography, the grey canvas base map turns on as expected. When I go back to my map, the grey canvas is now listed in the TOC twice. I can't find this in the release notes, was this a new feature added at 2.3? When I have World Topo as a the base map in the map, this doesn't happen. 

[KoryKramer · Accepted solution]

Not by design.  This bug was logged:

[BUG-000122156: Previewing a map that does not contain a basemap in the Catalog View adds Gray Canvas basemap twice to the project's Map.]

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Thank you.