$ git clone -n https://src.fedoraproject.org/rpms/rust-routinator.git /var/lib/mock/f42-build-3264083-41244/root/chroot_tmpdir/scmroot/rust-routinator
Cloning into '/var/lib/mock/f42-build-3264083-41244/root/chroot_tmpdir/scmroot/rust-routinator'...
$ git fetch origin 1e4550a99f0ef26abda837e231546dc416c19764:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-routinator
 * [new ref]         1e4550a99f0ef26abda837e231546dc416c19764 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 1e4550a Restore license list; use shrink for easier future diffing