[FIX] base_sparse_field: improve fields' view

Set default values when creating serialized field from contained field.

addons/base_sparse_field/models/models.py

@@ -8,7 +8,7 @@ class IrModelFields(models.Model):
 
     ttype = fields.Selection(selection_add=[('serialized', 'serialized')])
     serialization_field_id = fields.Many2one('ir.model.fields', string='Serialization Field',
-        ondelete='cascade', domain="[('ttype','=','serialized')]",
+        ondelete='cascade', domain="[('ttype','=','serialized'), ('model_id', '=', model_id)]",
         help="If set, this field will be stored in the sparse structure of the "
              "serialization field, instead of having its own database column. "
              "This cannot be changed after creation.",

addons/base_sparse_field/views/views.xml

@@ -22,7 +22,7 @@
             <field name="arch" type="xml">
                 <field name="related" position="before">
                     <field name="serialization_field_id"
-                        domain="[('ttype','=','serialized'), ('model_id','=',model_id)]"
+                        context="{'default_model_id': model_id, 'default_ttype': 'serialized'}"
                         attrs="{'readonly': [('state','=','base')]}"/>
                 </field>
             </field>