$ git clone -n https://src.fedoraproject.org/rpms/rust-imageproc.git /var/lib/mock/f45-build-45162-821/root/chroot_tmpdir/scmroot/rust-imageproc
Cloning into '/var/lib/mock/f45-build-45162-821/root/chroot_tmpdir/scmroot/rust-imageproc'...
$ git fetch origin f508a814d6c947df2355a24fa7ddb38f9aa3c8f8:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-imageproc
 * [new ref]         f508a814d6c947df2355a24fa7ddb38f9aa3c8f8 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at f508a81 Initial import (#2514385)