$ git clone -n https://src.fedoraproject.org/rpms/openchange.git /var/lib/mock/f41-build-1022691-18093/root/chroot_tmpdir/scmroot/openchange
Cloning into '/var/lib/mock/f41-build-1022691-18093/root/chroot_tmpdir/scmroot/openchange'...
$ git fetch origin cf0df3e25e4e5d4f21cb05f0543409eab9d8fd8e:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/openchange
 * [new ref]         cf0df3e25e4e5d4f21cb05f0543409eab9d8fd8e -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at cf0df3e Eliminate use of obsolete %patchN syntax (#2283636)