$ git clone -n https://src.fedoraproject.org/rpms/vdirsyncer.git /var/lib/mock/f40-build-2102525-50549/root/chroot_tmpdir/scmroot/vdirsyncer
Cloning into '/var/lib/mock/f40-build-2102525-50549/root/chroot_tmpdir/scmroot/vdirsyncer'...
$ git fetch origin 6f9ea41c92064ef378589a796a0adfb2faba0807:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/vdirsyncer
 * [new ref]         6f9ea41c92064ef378589a796a0adfb2faba0807 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 6f9ea41 Rebuilt for https://fedoraproject.org/wiki/Fedora_39_Mass_Rebuild