[FIX] mail: To: me, To-do display messages to_read

These menus are supposed to display the message
to: me / to do that matches the `To Read` filter.

The filter was correctly displayed in the search
view, but the records displayed were not the
result of the search, because the call to
`message_read`, in `message_fetch` was done
too early, with the wrong domain.

This is because `searchview.has_defaults`
& `searchview.ready` have disapeared in saas-6,
with the refactoring of the search view.

opw-659137

addons/mail/static/src/js/mail.js

@@ -1967,7 +1967,7 @@ openerp.mail = function (session) {
             this._super.apply(this);
             this.bind_events();
             var searchview_loaded = this.load_searchview(this.defaults);
-            if (! this.searchview.has_defaults) {
+            if (_.isEmpty(this.searchview.defaults)) {
                 this.message_render();
             }
             // render sidebar
@@ -1990,10 +1990,11 @@ openerp.mail = function (session) {
             this.searchview.on('search_data', this, this.do_searchview_search);
             this.searchview.appendTo(this.$('.oe-view-manager-search-view')).then(function () {
                 self.searchview.toggle_visibility(true);
+                if (!_.isEmpty(self.searchview.defaults)) {
+                    self.searchview.do_search();
+                }
             });
-            if (this.searchview.has_defaults) {
-                this.searchview.ready.then(this.searchview.do_search);
-            }
+
             return this.searchview
         },