$ git clone -n https://src.fedoraproject.org/rpms/ocaml-calendar.git /var/lib/mock/f40-build-784241-133348/root/chroot_tmpdir/scmroot/ocaml-calendar
Cloning into '/var/lib/mock/f40-build-784241-133348/root/chroot_tmpdir/scmroot/ocaml-calendar'...
$ git fetch origin cbbff9ed003ce8527d2d5caee5ef343c59282913:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/ocaml-calendar
 * [new ref]         cbbff9ed003ce8527d2d5caee5ef343c59282913 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at cbbff9e Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild