$ git clone -n https://src.fedoraproject.org/rpms/clamav-unofficial-sigs.git /var/lib/mock/f39-build-1489907-34502/root/chroot_tmpdir/scmroot/clamav-unofficial-sigs
Cloning into '/var/lib/mock/f39-build-1489907-34502/root/chroot_tmpdir/scmroot/clamav-unofficial-sigs'...
$ git fetch origin 56115d79c11aeba56c2e9cf79a406fb82bab1ba5:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/clamav-unofficial-sigs
 * [new ref]         56115d79c11aeba56c2e9cf79a406fb82bab1ba5 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 56115d7 Rebuilt for https://fedoraproject.org/wiki/Fedora_39_Mass_Rebuild