$ git clone -n https://src.fedoraproject.org/rpms/Agda-stdlib.git /var/lib/mock/f38-build-side-42-init-devel-1390667-30718/root/chroot_tmpdir/scmroot/Agda-stdlib
Cloning into '/var/lib/mock/f38-build-side-42-init-devel-1390667-30718/root/chroot_tmpdir/scmroot/Agda-stdlib'...
$ git fetch origin 8234f3137c4db41795b3a82e12c190eb62ba3350:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/Agda-stdlib
 * [new ref]         8234f3137c4db41795b3a82e12c190eb62ba3350 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 8234f31 also exclude i686