$ git clone -n https://src.fedoraproject.org/rpms/freeipa.git /var/lib/mock/f42-build-863147-171455/root/chroot_tmpdir/scmroot/freeipa
Cloning into '/var/lib/mock/f42-build-863147-171455/root/chroot_tmpdir/scmroot/freeipa'...
$ git fetch origin c86141c0e8f1c077cd0a455664429b66b20aa2cf:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/freeipa
 * [new ref]         c86141c0e8f1c077cd0a455664429b66b20aa2cf -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at c86141c Remove separate pyca 44 patch