$ git clone -n https://src.fedoraproject.org/rpms/clamav-unofficial-sigs.git /var/lib/mock/f40-build-2339570-59660/root/chroot_tmpdir/scmroot/clamav-unofficial-sigs
Cloning into '/var/lib/mock/f40-build-2339570-59660/root/chroot_tmpdir/scmroot/clamav-unofficial-sigs'...
$ git fetch origin bbc5a5292df3c329a7ca54a44675d02ee4e85c5a:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/clamav-unofficial-sigs
 * [new ref]         bbc5a5292df3c329a7ca54a44675d02ee4e85c5a -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at bbc5a52 Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild