$ git clone -n https://src.fedoraproject.org/rpms/manafirewall.git /var/lib/mock/f39-build-1739302-41326/root/chroot_tmpdir/scmroot/manafirewall
Cloning into '/var/lib/mock/f39-build-1739302-41326/root/chroot_tmpdir/scmroot/manafirewall'...
$ git fetch origin 124e4b77b384df5eb2b02891cd55d5c93a1b512f:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/manafirewall
 * [new ref]         124e4b77b384df5eb2b02891cd55d5c93a1b512f -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 124e4b7 Add setuptools as a BR