$ git clone -n https://src.fedoraproject.org/rpms/idris.git /var/lib/mock/f38-build-side-42-init-devel-906320-28628/root/chroot_tmpdir/scmroot/idris
Cloning into '/var/lib/mock/f38-build-side-42-init-devel-906320-28628/root/chroot_tmpdir/scmroot/idris'...
$ git fetch origin e69608af843dd117f21e7ba6ced2e5a2b5a70102:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/idris
 * [new ref]         e69608af843dd117f21e7ba6ced2e5a2b5a70102 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at e69608a bump release