$ git clone -n https://src.fedoraproject.org/rpms/rust-tabled.git /var/lib/mock/f41-build-side-1-3149614-40521/root/chroot_tmpdir/scmroot/rust-tabled
Cloning into '/var/lib/mock/f41-build-side-1-3149614-40521/root/chroot_tmpdir/scmroot/rust-tabled'...
$ git fetch origin 31294b330dd2de7d3fe3d1b609a1180e804e7e89:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-tabled
 * [new ref]         31294b330dd2de7d3fe3d1b609a1180e804e7e89 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 31294b3 Update to version 0.16.0; Fixes: RHBZ#2255309