diff --git a/addons/point_of_sale/models/res_partner.py b/addons/point_of_sale/models/res_partner.py
index 238fdbdeb8e..d9b2405cc39 100644
--- a/addons/point_of_sale/models/res_partner.py
+++ b/addons/point_of_sale/models/res_partner.py
@@ -30,5 +30,6 @@ class ResPartner(models.Model):
         if partner_id:  # Modifying existing partner
             self.browse(partner_id).write(partner)
         else:
+            partner['lang'] = self.env.user.lang
             partner_id = self.create(partner).id
         return partner_id
diff --git a/addons/stock/models/stock_move.py b/addons/stock/models/stock_move.py
index b7ec53666ae..7b00a47f9b0 100644
--- a/addons/stock/models/stock_move.py
+++ b/addons/stock/models/stock_move.py
@@ -552,7 +552,7 @@ class StockMove(models.Model):
                     (move.picking_id.picking_type_id.use_existing_lots or move.picking_id.picking_type_id.use_create_lots) and \
                     move.product_id.tracking != 'none' and \
                     not (move.restrict_lot_id or (pack_operation and (pack_operation.product_id and pack_operation.pack_lot_ids)) or (pack_operation and not pack_operation.product_id)):
-                raise UserError(_('You need to provide a Lot/Serial Number for product %s') % move.product_id.name)
+                raise UserError(_('You need to provide a Lot/Serial Number for product %s') % ("%s (%s)" % (move.product_id.name, move.picking_id.name)))
 
     @api.multi
     def action_assign(self, no_prepare=False):
diff --git a/addons/web/controllers/main.py b/addons/web/controllers/main.py
index 5c3fc9f9e50..a34ff7f7bdf 100644
--- a/addons/web/controllers/main.py
+++ b/addons/web/controllers/main.py
@@ -1012,8 +1012,8 @@ class Binary(http.Controller):
         elif status != 200 and download:
             return request.not_found()
 
-        height = int(height)
-        width = int(width)
+        height = int(height or 0)
+        width = int(width or 0)
         if content and (width or height):
             # resize maximum 500*500
             if width > 500:
diff --git a/addons/website_slides/models/slides.py b/addons/website_slides/models/slides.py
index bd2a544a599..10717866b07 100644
--- a/addons/website_slides/models/slides.py
+++ b/addons/website_slides/models/slides.py
@@ -371,7 +371,10 @@ class Slide(models.Model):
             if slide.id:  # avoid to perform a slug on a not yet saved record in case of an onchange.
                 # link_tracker is not in dependencies, so use it to shorten url only if installed.
                 if self.env.registry.get('link.tracker'):
-                    url = self.env['link.tracker'].sudo().create({'url': '%s/slides/slide/%s' % (base_url, slug(slide))}).short_url
+                    url = self.env['link.tracker'].sudo().create({
+                        'url': '%s/slides/slide/%s' % (base_url, slug(slide)),
+                        'title': slide.name,
+                    }).short_url
                 else:
                     url = '%s/slides/slide/%s' % (base_url, slug(slide))
                 slide.website_url = url
diff --git a/odoo/cli/server.py b/odoo/cli/server.py
index afb172b7f3c..180efcfb70f 100644
--- a/odoo/cli/server.py
+++ b/odoo/cli/server.py
@@ -21,6 +21,8 @@ import threading
 import traceback
 import time
 
+from psycopg2 import ProgrammingError, errorcodes
+
 import odoo
 
 from . import Command
@@ -136,6 +138,15 @@ def main(args):
         for db_name in preload:
             try:
                 odoo.service.db._create_empty_database(db_name)
+            except ProgrammingError as err:
+                if err.pgcode == errorcodes.INSUFFICIENT_PRIVILEGE:
+                    # We use an INFO loglevel on purpose in order to avoid
+                    # reporting unnecessary warnings on build environment
+                    # using restricted database access.
+                    _logger.info("Could not determine if database %s exists, "
+                                 "skipping auto-creation: %s", db_name, err)
+                else:
+                    raise err
             except odoo.service.db.DatabaseExists:
                 pass