$ git clone -n https://src.fedoraproject.org/rpms/kf5-kactivities.git /var/lib/mock/f40-build-2292504-56142/root/chroot_tmpdir/scmroot/kf5-kactivities
Cloning into '/var/lib/mock/f40-build-2292504-56142/root/chroot_tmpdir/scmroot/kf5-kactivities'...
$ git fetch origin a0bce02e5ca7bf6553eff6d971a5e66e6d26b516:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/kf5-kactivities
 * [new ref]         a0bce02e5ca7bf6553eff6d971a5e66e6d26b516 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at a0bce02 Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild