$ git clone -n https://src.fedoraproject.org/rpms/vacuum-im.git /var/lib/mock/f39-build-1551603-36981/root/chroot_tmpdir/scmroot/vacuum-im
Cloning into '/var/lib/mock/f39-build-1551603-36981/root/chroot_tmpdir/scmroot/vacuum-im'...
$ git fetch origin 01d08371ea6d781848d379fd10d92984b69b899e:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/vacuum-im
 * [new ref]         01d08371ea6d781848d379fd10d92984b69b899e -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 01d0837 Rebuilt for https://fedoraproject.org/wiki/Fedora_39_Mass_Rebuild