Index: branches/5.1.x/admin_templates/products/option_edit.tpl
===================================================================
diff -u -N -r13100 -r13549
--- branches/5.1.x/admin_templates/products/option_edit.tpl	(.../option_edit.tpl)	(revision 13100)
+++ branches/5.1.x/admin_templates/products/option_edit.tpl	(.../option_edit.tpl)	(revision 13549)
@@ -310,7 +310,7 @@
 			<inp2:m_RenderElement name="inp_edit_box" prefix="po" field="Name" title="!la_fld_Name!" size="40"/>
 			<inp2:m_RenderElement name="inp_edit_checkbox" prefix="po" field="Required" title="!la_fld_Required!"/>
 			<!--<inp2:m_RenderElement name="inp_edit_checkbox" prefix="po" field="Listable" title="!la_fld_Listable!"/>-->
-			<inp2:m_RenderElement name="inp_edit_options" prefix="po" field="OptionType" title="!la_fld_OptionType!" onchange="update_type(this.value)"/>
+			<inp2:m_RenderElement name="inp_edit_options" prefix="po" field="OptionType" has_empty="1" empty_value="0" title="!la_fld_OptionType!" onchange="update_type(this.value)"/>
 			<inp2:m_RenderElement name="inp_edit_box" prefix="po" field="Priority" title="!la_fld_Priority!" size="2"/>
 			<inp2:m_RenderElement name="options_list" prefix="po" field="Values" title="!la_fld_Values!" size="2"/>
 		<inp2:m_RenderElement name="inp_edit_filler"/>