$ git clone -n https://src.fedoraproject.org/rpms/rust-zlink-smol.git /var/lib/mock/f45-build-46376-834/root/chroot_tmpdir/scmroot/rust-zlink-smol
Cloning into '/var/lib/mock/f45-build-46376-834/root/chroot_tmpdir/scmroot/rust-zlink-smol'...
$ git fetch origin 616217c696fa320bbba7d32e281f2a4b3f91cfda:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-zlink-smol
 * [new ref]         616217c696fa320bbba7d32e281f2a4b3f91cfda -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 616217c Update to version 0.7.0