[FIX] web_editor: stop using translated versions in HTML editor

Since https://github.com/odoo/odoo/commit/5a030db3eb77b6d80187f8ae1a64303b2f50391d
the HTML editor displayed the translated versions of the templates it
allows to customize. So if the user edited and saved such a template,
the non-translated version was saved with translated-version content.

The behavior before the mentioned commit was:
1) Load all views the HTML editor allows to edit
2) Each time a view is displayed, re-make a RPC to load the view again

The mentioned commit made this simpler by making:
1) Load all views the HTML editor allows to edit
2) Each time a view is displayed, simply show the previously loaded view

... the problem was that the step (2) of the old behavior was
explicitly saying (client-side) to load the view's untranslated content.
This commit makes step (1) always load the untranslated versions of the
views (server-side).

addons/web_editor/models/ir_ui_view.py

@@ -188,7 +188,8 @@ class IrUiView(models.Model):
             ``bundles=True`` returns also the asset bundles
         """
         user_groups = set(self.env.user.groups_id)
-        views = self.with_context(active_test=False)._views_get(key, bundles=bundles)
+        View = self.with_context(active_test=False, lang=None)
+        views = View._views_get(key, bundles=bundles)
         views = views.filtered(lambda v: not v.groups_id or len(user_groups.intersection(v.groups_id)))
         return views
 

addons/website/static/src/js/website.tour.rte.js

@@ -151,6 +151,26 @@ tour.register('rte_translator', {
         }, {
             content: "check bis: placeholder translation",
             trigger: 'input[placeholder="test french placeholder"]',
+        }, {
+            content: "Open customize menu",
+            trigger: "#customize-menu > .dropdown-toggle",
+        }, {
+            content: "Open HTML editor",
+            trigger: "[data-action='ace']",
+        }, {
+            content: "Check that the editor is not showing translated content (1)",
+            trigger: '.ace_text-layer .ace_line:contains("an HTML")',
+            run: function (actions) {
+                var lineEscapedText = $(this.$anchor.text()).text();
+                if (lineEscapedText !== "<b></b> is an HTML tag & is empty") {
+                    console.error('The HTML editor should display the correct untranslated content');
+                    $('body').addClass('rte_translator_error');
+                }
+            },
+        }, {
+            content: "Check that the editor is not showing translated content (2)",
+            trigger: 'body:not(.rte_translator_error)',
+            run: function () {},
         },
     ]
 );