$ git clone -n https://src.fedoraproject.org/rpms/nbd.git /var/lib/mock/f38-build-722453-98809/root/chroot_tmpdir/scmroot/nbd
Cloning into '/var/lib/mock/f38-build-722453-98809/root/chroot_tmpdir/scmroot/nbd'...
$ git fetch origin 46dd7d663459bcbeb76054d357bef370449c351f:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/nbd
 * [new ref]         46dd7d663459bcbeb76054d357bef370449c351f -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 46dd7d6 New release 3.25 with obsoleted gznbd disabled