$ git clone -n https://src.fedoraproject.org/rpms/dayplanner.git /var/lib/mock/f39-build-1457930-33025/root/chroot_tmpdir/scmroot/dayplanner
Cloning into '/var/lib/mock/f39-build-1457930-33025/root/chroot_tmpdir/scmroot/dayplanner'...
$ git fetch origin f847a15f17d3fb5c3c0e22ad8f54cf901fda56f9:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/dayplanner
 * [new ref]         f847a15f17d3fb5c3c0e22ad8f54cf901fda56f9 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at f847a15 Rebuilt for https://fedoraproject.org/wiki/Fedora_39_Mass_Rebuild