$ git clone -n https://src.fedoraproject.org/rpms/rust-imgref.git /var/lib/mock/f45-build-42534-794/root/chroot_tmpdir/scmroot/rust-imgref
Cloning into '/var/lib/mock/f45-build-42534-794/root/chroot_tmpdir/scmroot/rust-imgref'...
$ git fetch origin 614a79029c7f5f014526659a078a4be9126649ff:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-imgref
 * [new ref]         614a79029c7f5f014526659a078a4be9126649ff -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 614a790 Skip two tests on 32-bit arches that fail due to integer overflow