$ git clone -n https://src.fedoraproject.org/rpms/rust-devicemapper.git /var/lib/mock/f38-build-side-43-rust-devel-1424692-31495/root/chroot_tmpdir/scmroot/rust-devicemapper
Cloning into '/var/lib/mock/f38-build-side-43-rust-devel-1424692-31495/root/chroot_tmpdir/scmroot/rust-devicemapper'...
$ git fetch origin 5d56e0dab9e1441722eab75d45e0a182db13b938:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-devicemapper
 * [new ref]         5d56e0dab9e1441722eab75d45e0a182db13b938 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 5d56e0d Update to version 0.33.5