$ git clone -n https://src.fedoraproject.org/rpms/rust-assert_cli.git /var/lib/mock/f38-build-side-42-init-devel-1395221-31050/root/chroot_tmpdir/scmroot/rust-assert_cli
Cloning into '/var/lib/mock/f38-build-side-42-init-devel-1395221-31050/root/chroot_tmpdir/scmroot/rust-assert_cli'...
$ git fetch origin 1fd842bec551f425057ba1154b08352c7805edad:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-assert_cli
 * [new ref]         1fd842bec551f425057ba1154b08352c7805edad -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 1fd842b Stop building and shipping test-only binary