$ git clone -n https://src.fedoraproject.org/rpms/js8call.git /var/lib/mock/f40-build-792048-138073/root/chroot_tmpdir/scmroot/js8call
Cloning into '/var/lib/mock/f40-build-792048-138073/root/chroot_tmpdir/scmroot/js8call'...
$ git fetch origin 6cddc2a0abfbc8fcc1e81f12d297578098e3adc2:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/js8call
 * [new ref]         6cddc2a0abfbc8fcc1e81f12d297578098e3adc2 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 6cddc2a Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild