$ git clone -n https://src.fedoraproject.org/rpms/boomaga.git /var/lib/mock/f39-build-1535155-36245/root/chroot_tmpdir/scmroot/boomaga
Cloning into '/var/lib/mock/f39-build-1535155-36245/root/chroot_tmpdir/scmroot/boomaga'...
$ git fetch origin 5efd451833ab28e5c685705be14853bbb696efca:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/boomaga
 * [new ref]         5efd451833ab28e5c685705be14853bbb696efca -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 5efd451 Rebuilt for https://fedoraproject.org/wiki/Fedora_39_Mass_Rebuild