Cloned folder confuses file manager

I’m using Ubuntu Studio 20.04, and I’m having some difficulties in Thunar (file manager) viewing the folders under cloned repositories.

I used Cargo to install the alpha.21 version.
I cloned the pijul repository (had an error first try).
I cloned the manual repository.
Then it behaves oddly, as if there are symbolic links to an unrelated sibling folder.
See this GIF, which was recorded in a new window of Thunar: