$ git clone -n https://src.fedoraproject.org/rpms/caffe.git /var/lib/mock/f41-build-1564189-23995/root/chroot_tmpdir/scmroot/caffe
Cloning into '/var/lib/mock/f41-build-1564189-23995/root/chroot_tmpdir/scmroot/caffe'...
$ git fetch origin c024bff72347816a93d3e045d5ffd994bc827337:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/caffe
 * [new ref]         c024bff72347816a93d3e045d5ffd994bc827337 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at c024bff Switch from openblas to flexiblas