$ git clone -n https://src.fedoraproject.org/rpms/libshumate.git /var/lib/mock/f41-build-852679-166445/root/chroot_tmpdir/scmroot/libshumate
Cloning into '/var/lib/mock/f41-build-852679-166445/root/chroot_tmpdir/scmroot/libshumate'...
$ git fetch origin 8759b90ea7f44535392b761de61adfccb57c7a81:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/libshumate
 * [new ref]         8759b90ea7f44535392b761de61adfccb57c7a81 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 8759b90 Update to 1.3.rc