diff --git a/addons/board/models/board.py b/addons/board/models/board.py
index 738f9850e08..3d7a47f7574 100644
--- a/addons/board/models/board.py
+++ b/addons/board/models/board.py
@@ -1,7 +1,7 @@
 # -*- coding: utf-8 -*-
 # Part of Odoo. See LICENSE file for full copyright and licensing details.
 
-from odoo import api, models
+from odoo import api, fields, models
 
 
 class Board(models.AbstractModel):
@@ -9,6 +9,12 @@ class Board(models.AbstractModel):
     _description = "Board"
     _auto = False
 
+    # This is necessary for when the web client opens a dashboard. Technically
+    # speaking, the dashboard is a form view, and opening it makes the client
+    # initialize a dummy record by invoking onchange(). And the latter requires
+    # an 'id' field to work properly...
+    id = fields.Id()
+
     @api.model_create_multi
     def create(self, vals_list):
         return self
diff --git a/odoo/addons/base/models/ir_model.py b/odoo/addons/base/models/ir_model.py
index 5777683d53f..ae15a0a9e98 100644
--- a/odoo/addons/base/models/ir_model.py
+++ b/odoo/addons/base/models/ir_model.py
@@ -1023,6 +1023,8 @@ class IrModelFields(models.Model):
             model_id = self.env['ir.model']._get_id(model_name)
             for field in self.env[model_name]._fields.values():
                 rows.append(self._reflect_field_params(field, model_id))
+        if not rows:
+            return
         cols = list(unique(['model', 'name'] + list(rows[0])))
         expected = [tuple(row[col] for col in cols) for row in rows]
 
diff --git a/odoo/addons/base/models/res_users.py b/odoo/addons/base/models/res_users.py
index d53f7d94d1d..832dafdc6ad 100644
--- a/odoo/addons/base/models/res_users.py
+++ b/odoo/addons/base/models/res_users.py
@@ -1726,4 +1726,6 @@ class APIKeyDescription(models.TransientModel):
 class APIKeyShow(models.AbstractModel):
     _name = _description = 'res.users.apikeys.show'
 
+    # the field 'id' is necessary for the onchange that returns the value of 'key'
+    id = fields.Id()
     key = fields.Char(readonly=True)
diff --git a/odoo/fields.py b/odoo/fields.py
index fcca4a323fe..6072bafbe26 100644
--- a/odoo/fields.py
+++ b/odoo/fields.py
@@ -495,10 +495,15 @@ class Field(MetaField('DummyField', (object,), {})):
 
         # special cases of inherited fields
         if self.inherited:
+            self.inherited_field = field
             if not self.states:
                 self.states = field.states
             if field.required:
                 self.required = True
+            # add modules from delegate and target fields; the first one ensures
+            # that inherited fields introduced via an abstract model (_inherits
+            # being on the abstract model) are assigned an XML id
+            self._modules.update(model._fields[self.related[0]]._modules)
             self._modules.update(field._modules)
 
         if self._depends_context is not None:
diff --git a/odoo/models.py b/odoo/models.py
index e4a7df6b1b9..be9955de020 100644
--- a/odoo/models.py
+++ b/odoo/models.py
@@ -438,6 +438,9 @@ class BaseModel(MetaModel('DummyModel', (object,), {'_register': False})):
               >>> str(datetime.datetime.utcnow())
               '2013-06-18 08:31:32.821177'
         """
+        if self._abstract:
+            return
+
         def add(name, field):
             """ add ``field`` with the given ``name`` if it does not exist yet """
             if name not in self._fields:
@@ -2534,6 +2537,8 @@ class BaseModel(MetaModel('DummyModel', (object,), {'_register': False})):
         return True
 
     def _check_removed_columns(self, log=False):
+        if self._abstract:
+            return
         # iterate on the database columns to drop the NOT NULL constraints of
         # fields which were required but have been removed (or will be added by
         # another module)
@@ -2714,7 +2719,7 @@ class BaseModel(MetaModel('DummyModel', (object,), {'_register': False})):
     @api.model
     def _add_inherited_fields(self):
         """ Determine inherited fields. """
-        if not self._inherits:
+        if self._abstract or not self._inherits:
             return
 
         # determine which fields can be inherited