$ git clone -n https://src.fedoraproject.org/rpms/avahi.git /var/lib/mock/f40-build-2239909-53626/root/chroot_tmpdir/scmroot/avahi
Cloning into '/var/lib/mock/f40-build-2239909-53626/root/chroot_tmpdir/scmroot/avahi'...
$ git fetch origin a328cd9a38304f8263a13899b7ede70b5cece174:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/avahi
 * [new ref]         a328cd9a38304f8263a13899b7ede70b5cece174 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at a328cd9 migrate to SPDX license format