$ git clone -n https://src.fedoraproject.org/rpms/rdma-core.git /var/lib/mock/f45-build-34376-685/root/chroot_tmpdir/scmroot/rdma-core
Cloning into '/var/lib/mock/f45-build-34376-685/root/chroot_tmpdir/scmroot/rdma-core'...
$ git fetch origin 1ef52d669086d58bb202f13c4617dbc4fa4ecc37:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rdma-core
 * [new ref]         1ef52d669086d58bb202f13c4617dbc4fa4ecc37 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 1ef52d6 Fix stray tab in NO_PYVERBS conditional