$ git clone -n https://src.fedoraproject.org/rpms/cmake.git /var/lib/mock/f41-build-756078-13417/root/chroot_tmpdir/scmroot/cmake
Cloning into '/var/lib/mock/f41-build-756078-13417/root/chroot_tmpdir/scmroot/cmake'...
$ git fetch origin 7fdd987674088c3d98082a8d783efaa4fb721220:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/cmake
 * [new ref]         7fdd987674088c3d98082a8d783efaa4fb721220 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 7fdd987 Add python3-cmake sub package