$ git clone -n https://src.fedoraproject.org/rpms/rust-sccache.git /var/lib/mock/f45-build-44678-816/root/chroot_tmpdir/scmroot/rust-sccache
Cloning into '/var/lib/mock/f45-build-44678-816/root/chroot_tmpdir/scmroot/rust-sccache'...
$ git fetch origin b483a43f387624701ce331efdc6f2cc49e2868d2:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-sccache
 * [new ref]         b483a43f387624701ce331efdc6f2cc49e2868d2 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at b483a43 Update License field based on a current Rawhide build