$ git clone -n https://src.fedoraproject.org/rpms/rust-gix-prompt.git /var/lib/mock/f38-build-side-43-rust-devel-1411858-31436/root/chroot_tmpdir/scmroot/rust-gix-prompt
Cloning into '/var/lib/mock/f38-build-side-43-rust-devel-1411858-31436/root/chroot_tmpdir/scmroot/rust-gix-prompt'...
$ git fetch origin 0d0c76debb3038d1678d75d7a58f646144b63942:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-gix-prompt
 * [new ref]         0d0c76debb3038d1678d75d7a58f646144b63942 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 0d0c76d Initial package (rhbz#2239512)