diff --git a/addons/purchase/models/account_invoice.py b/addons/purchase/models/account_invoice.py
index ec35351ddd0..b6b9553a875 100644
--- a/addons/purchase/models/account_invoice.py
+++ b/addons/purchase/models/account_invoice.py
@@ -91,7 +91,9 @@ class AccountInvoice(models.Model):
     def _onchange_currency_id(self):
         if self.currency_id:
             for line in self.invoice_line_ids.filtered(lambda r: r.purchase_line_id):
-                line.price_unit = line.purchase_id.currency_id.with_context(date=self.date_invoice).compute(line.purchase_line_id.price_unit, self.currency_id, round=False)
+                if line.purchase_id.currency_id != self.currency_id:
+                    line.price_unit = line.purchase_id.currency_id.with_context(date=self.date_invoice)\
+                        .compute(line.purchase_line_id.price_unit, self.currency_id, round=False)
 
     @api.onchange('invoice_line_ids')
     def _onchange_origin(self):
diff --git a/addons/stock_landed_costs/models/stock_landed_cost.py b/addons/stock_landed_costs/models/stock_landed_cost.py
index 12134cc0f0f..c4a6beaf307 100644
--- a/addons/stock_landed_costs/models/stock_landed_cost.py
+++ b/addons/stock_landed_costs/models/stock_landed_cost.py
@@ -191,9 +191,13 @@ class LandedCost(models.Model):
                     val_line_values.update({'cost_id': cost.id, 'cost_line_id': cost_line.id})
                     self.env['stock.valuation.adjustment.lines'].create(val_line_values)
                 total_qty += val_line_values.get('quantity', 0.0)
-                total_cost += val_line_values.get('former_cost', 0.0)
                 total_weight += val_line_values.get('weight', 0.0)
                 total_volume += val_line_values.get('volume', 0.0)
+
+                former_cost = val_line_values.get('former_cost', 0.0)
+                # round this because former_cost on the valuation lines is also rounded
+                total_cost += tools.float_round(former_cost, precision_digits=digits[1]) if digits else former_cost
+
                 total_line += 1
 
             for line in cost.cost_lines:
diff --git a/addons/website/static/src/js/website.js b/addons/website/static/src/js/website.js
index 3c063ba60dc..d9d3943dcc1 100644
--- a/addons/website/static/src/js/website.js
+++ b/addons/website/static/src/js/website.js
@@ -241,7 +241,7 @@ odoo.define('website.website', function (require) {
 
     /* Load localizations */
     var lang = utils.get_cookie('website_lang') || $('html').attr('lang') || 'en_US';
-    ajax.loadJS('/web/webclient/locale/' + lang.replace('-', '_'));
+    var localeDef = ajax.loadJS('/web/webclient/locale/' + lang.replace('-', '_'));
 
     /**
      * Object who contains all method and bind for the top bar, the template is create server side.
@@ -291,6 +291,7 @@ odoo.define('website.website', function (require) {
             console.warn("website.ready is deprecated: Please use require('web_editor.base').ready()");
             return base.ready();
         },
+        localeDef: localeDef,
     };
     return data;
 });
diff --git a/addons/website_slides/static/src/js/slides.js b/addons/website_slides/static/src/js/slides.js
index c4df6643f99..93ff942ab83 100644
--- a/addons/website_slides/static/src/js/slides.js
+++ b/addons/website_slides/static/src/js/slides.js
@@ -7,6 +7,7 @@ var core = require('web.core');
 var time = require('web.time');
 var Widget = require('web.Widget');
 var local_storage = require('web.local_storage');
+var website = require('website.website');
 
 var _t = core._t;
 var page_widgets = {};
@@ -15,19 +16,20 @@ $(document).ready(function () {
 
     var widget_parent = $('body');
 
-
-    $("timeago.timeago").each(function (index, el) {
-        var datetime = $(el).attr('datetime'),
-            datetime_obj = time.str_to_datetime(datetime),
-            // if presentation 7 days, 24 hours, 60 min, 60 second, 1000 millis old(one week)
-            // then return fix formate string else timeago
-            display_str = "";
-        if (datetime_obj && new Date().getTime() - datetime_obj.getTime() > 7 * 24 * 60 * 60 * 1000) {
-            display_str = datetime_obj.toDateString();
-        } else {
-            display_str = moment(datetime_obj).fromNow();
-        }
-        $(el).text(display_str);
+    website.localeDef.then(function () {
+        $("timeago.timeago").each(function (index, el) {
+            var datetime = $(el).attr('datetime'),
+                datetime_obj = time.str_to_datetime(datetime),
+                // if presentation 7 days, 24 hours, 60 min, 60 second, 1000 millis old(one week)
+                // then return fix formate string else timeago
+                display_str = "";
+            if (datetime_obj && new Date().getTime() - datetime_obj.getTime() > 7 * 24 * 60 * 60 * 1000) {
+                display_str = moment(datetime_obj).format('ll');
+            } else {
+                display_str = moment(datetime_obj).fromNow();
+            }
+            $(el).text(display_str);
+        });
     });
 
     // To prevent showing channel settings alert box once user closed it.