$ git clone -n https://src.fedoraproject.org/rpms/octave-iso2mesh.git /var/lib/mock/f41-build-side-1-2969475-35819/root/chroot_tmpdir/scmroot/octave-iso2mesh
Cloning into '/var/lib/mock/f41-build-side-1-2969475-35819/root/chroot_tmpdir/scmroot/octave-iso2mesh'...
$ git fetch origin 890b5c145b0ccb07cdd0ef60e9f881aaa67d010f:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/octave-iso2mesh
 * [new ref]         890b5c145b0ccb07cdd0ef60e9f881aaa67d010f -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 890b5c1 convert license to SPDX