Use field context to edit record

issue10806
review364101002
(grafted from 1249931768127750f3c905256aa435285a9a00fc)

--HG--
branch : 6.0

src/view/form.js

@@ -2560,6 +2560,7 @@ function eval_pyson(value){
                     params.res_id = m2o_id;
                     params.mode = ['form'];
                     params.name = this.attributes.string;
+                    params.context = this.field.get_context(this.record);
                     Sao.Tab.create(params);
                     return;
                 }

src/view/tree.js

@@ -2267,6 +2267,7 @@
                 params.res_id = this.field.get(record);
                 params.mode = ['form'];
                 params.name = this.attributes.string;
+                params.context = this.field.get_context(record);
                 Sao.Tab.create(params);
             }.bind(this));
         }