$ git clone -n https://src.fedoraproject.org/rpms/rust-xdg-home.git /var/lib/mock/f40-build-2040801-48385/root/chroot_tmpdir/scmroot/rust-xdg-home
Cloning into '/var/lib/mock/f40-build-2040801-48385/root/chroot_tmpdir/scmroot/rust-xdg-home'...
$ git fetch origin b2528334d3e885a9b96ad3595c257b404e12322e:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-xdg-home
 * [new ref]         b2528334d3e885a9b96ad3595c257b404e12322e -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at b252833 Rebuilt for https://fedoraproject.org/wiki/Fedora_39_Mass_Rebuild