$ git clone -n https://src.fedoraproject.org/rpms/openbox-theme-mistral-thin.git /var/lib/mock/f39-build-1497804-34649/root/chroot_tmpdir/scmroot/openbox-theme-mistral-thin
Cloning into '/var/lib/mock/f39-build-1497804-34649/root/chroot_tmpdir/scmroot/openbox-theme-mistral-thin'...
$ git fetch origin 34e53fbafbc3900b3c8e35b634ae9e115beb5efa:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/openbox-theme-mistral-thin
 * [new ref]         34e53fbafbc3900b3c8e35b634ae9e115beb5efa -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 34e53fb Rebuilt for https://fedoraproject.org/wiki/Fedora_39_Mass_Rebuild