$ git clone -n https://src.fedoraproject.org/rpms/xfce4-datetime-plugin.git /var/lib/mock/f40-build-760541-121101/root/chroot_tmpdir/scmroot/xfce4-datetime-plugin
Cloning into '/var/lib/mock/f40-build-760541-121101/root/chroot_tmpdir/scmroot/xfce4-datetime-plugin'...
$ git fetch origin d2147c9ac1e2dd1b3f63cb79ab5d19923b07c977:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/xfce4-datetime-plugin
 * [new ref]         d2147c9ac1e2dd1b3f63cb79ab5d19923b07c977 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at d2147c9 Rebuilt for https://fedoraproject.org/wiki/Fedora_39_Mass_Rebuild