diff --git a/addons/point_of_sale/models/pos_config.py b/addons/point_of_sale/models/pos_config.py
index efca9a08428..cad08436916 100644
--- a/addons/point_of_sale/models/pos_config.py
+++ b/addons/point_of_sale/models/pos_config.py
@@ -319,10 +319,11 @@ class PosConfig(models.Model):
     def name_get(self):
         result = []
         for config in self:
-            if (not config.session_ids) or (config.session_ids[0].state == 'closed'):
+            last_session = self.env['pos.session'].search([('config_id', '=', config.id)], limit=1)
+            if (not last_session) or (last_session.state == 'closed'):
                 result.append((config.id, config.name + ' (' + _('not used') + ')'))
                 continue
-            result.append((config.id, config.name + ' (' + config.session_ids[0].user_id.name + ')'))
+            result.append((config.id, config.name + ' (' + last_session.user_id.name + ')'))
         return result
 
     @api.model
diff --git a/addons/pos_restaurant/static/src/js/multiprint.js b/addons/pos_restaurant/static/src/js/multiprint.js
index 6279aea2c40..738b13d9362 100644
--- a/addons/pos_restaurant/static/src/js/multiprint.js
+++ b/addons/pos_restaurant/static/src/js/multiprint.js
@@ -31,8 +31,10 @@ var Printer = core.Class.extend(mixins.PropertiesMixin,{
                 self.connection.rpc('/hw_proxy/print_xml_receipt', {receipt: r}, options)
                     .then(function(){
                         send_printing_job();
-                    },function(){
+                    },function(error, event){
                         self.receipt_queue.unshift(r);
+                        console.log('There was an error while trying to print the order:');
+                        console.log(error);
                     });
             }
         }
@@ -56,7 +58,7 @@ models.load_models({
 
         for(var i = 0; i < printers.length; i++){
             if(active_printers[printers[i].id]){
-                var url = printers[i].proxy_ip;
+                var url = printers[i].proxy_ip || '';
                 if(url.indexOf('//') < 0){
                     url = 'http://'+url;
                 }
diff --git a/addons/sale_management/static/src/js/tour.js b/addons/sale_management/static/src/js/tour.js
index 92bdd5299b8..5893c08c9fa 100644
--- a/addons/sale_management/static/src/js/tour.js
+++ b/addons/sale_management/static/src/js/tour.js
@@ -44,6 +44,8 @@ tour.register('sale_tour', {
     in_modal: false,
     run: function (actions) {
         actions.auto();
+        // There might be a modal because of the view:
+        // sale.order.form.editable.list, enabled by some groups
         if ($(".modal-footer .btn-primary").length) {
             actions.auto(".modal-footer .btn-primary");
         }
diff --git a/addons/stock/models/stock_move.py b/addons/stock/models/stock_move.py
index fd8350fe102..1df578b7c40 100644
--- a/addons/stock/models/stock_move.py
+++ b/addons/stock/models/stock_move.py
@@ -780,7 +780,7 @@ class StockMove(models.Model):
                 group_id = False
         return {
             'company_id': self.company_id,
-            'date_planned': self.date,
+            'date_planned': self.date_expected,
             'move_dest_ids': self,
             'group_id': group_id,
             'route_ids': self.route_ids,
diff --git a/addons/stock_account/models/product.py b/addons/stock_account/models/product.py
index 27630eb1011..6e3189ed168 100644
--- a/addons/stock_account/models/product.py
+++ b/addons/stock_account/models/product.py
@@ -146,11 +146,13 @@ class ProductProduct(models.Model):
                             'account_id': debit_account_id,
                             'debit': abs(diff * qty_available),
                             'credit': 0,
+                            'product_id': product.id,
                         }), (0, 0, {
                             'name': _('Standard Price changed  - %s') % (product.display_name),
                             'account_id': credit_account_id,
                             'debit': 0,
                             'credit': abs(diff * qty_available),
+                            'product_id': product.id,
                         })],
                     }
                     move = AccountMove.create(move_vals)
diff --git a/addons/website_sale_options/static/src/js/website_sale.js b/addons/website_sale_options/static/src/js/website_sale.js
index da7025d65bb..27da88ae866 100644
--- a/addons/website_sale_options/static/src/js/website_sale.js
+++ b/addons/website_sale_options/static/src/js/website_sale.js
@@ -9,7 +9,7 @@ require('website_sale.website_sale');
 $('.oe_website_sale #add_to_cart, .oe_website_sale #products_grid .a-submit')
     .off('click')
     .removeClass('a-submit')
-    .click(function (event) {
+    .click(_.debounce(function (event) {
         var $form = $(this).closest('form');
         var quantity = parseFloat($form.find('input[name="add_qty"]').val() || 1);
         var product_id = parseInt($form.find('input[type="hidden"][name="product_id"], input[type="radio"][name="product_id"]:checked').first().val(),10);
@@ -96,6 +96,6 @@ $('.oe_website_sale #add_to_cart, .oe_website_sale #products_grid .a-submit')
                 });
             });
         return false;
-    });
+    }, 200, true));
 
 });
diff --git a/odoo/addons/base/res/ir_property.py b/odoo/addons/base/res/ir_property.py
index 99b63a95887..63ca6d2d6d0 100644
--- a/odoo/addons/base/res/ir_property.py
+++ b/odoo/addons/base/res/ir_property.py
@@ -189,7 +189,7 @@ class Property(models.Model):
         if not values:
             return
 
-        if not default_value:
+        if default_value is None:
             domain = self._get_domain(name, model)
             if domain is None:
                 raise Exception()