Fix draw-arrow* when applied directly to a medium (it assumed a sheet).
Fix draw-arrow* when applied directly to a medium (it assumed a sheet).

onixie/mcclim,swflint/McCLIM,onixie/mcclim,slyrus/mcclim,antifuchs/mcclim,swflint/McCLIM,antifuchs/mcclim,swflint/McCLIM,slyrus/mcclim,onixie/mcclim