$ git clone -n https://src.fedoraproject.org/rpms/squeekboard.git /var/lib/mock/f42-build-3342971-44991/root/chroot_tmpdir/scmroot/squeekboard
Cloning into '/var/lib/mock/f42-build-3342971-44991/root/chroot_tmpdir/scmroot/squeekboard'...
$ git fetch origin d5ad87e1f7b0c89a3f1d1eb1939a1dafac254b2c:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/squeekboard
 * [new ref]         d5ad87e1f7b0c89a3f1d1eb1939a1dafac254b2c -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at d5ad87e Properly document licenses of the source and of Rust dependencies