For example for use in domain?
<field name="some_line_ids">
<tree>
<field name="name"/>
<field name="field_inside_o2m"/>
<field name="onother_field_inside_o2m" widget="selection" domain="[('field_inside_o2m','=',field_inside_o2m)]"/>
</tree>
</field>
Access to field field_inside_o2m
inside one2many generate error: name field_inside_o2m
is not defined