[FIX] context do not apply to m2m

views/training_course_view.xml

@@ -16,10 +16,7 @@
                 </group>
                 <notebook>
                     <page name="sessions" string="Sessions">
-                        <field
-                                name="session_ids"
-                                context="{'default_course_id': active_id,}"
-                            >
+                        <field name="session_ids">
                             <tree>
                                 <field name="sequence" widget="handle" />
                                 <field name="name" />