$ git clone -n https://src.fedoraproject.org/rpms/ytnef.git /var/lib/mock/f40-build-761855-121674/root/chroot_tmpdir/scmroot/ytnef
Cloning into '/var/lib/mock/f40-build-761855-121674/root/chroot_tmpdir/scmroot/ytnef'...
$ git fetch origin 7ae0fe21ec366c3d7ae3f092d06aa9bfc853e057:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/ytnef
 * [new ref]         7ae0fe21ec366c3d7ae3f092d06aa9bfc853e057 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 7ae0fe2 Update to version 2.1.2