Open new tab if the current view of existing tab is not the first one

User expect that action will open a tab on the first/default view even if an
existing tab exists with a different view.

Closes #9086

sao/src/screen.js

@@ -925,6 +925,9 @@
         get number_of_views() {
             return this.views.length + this.view_to_load.length;
         },
+        get view_index() {
+            return this.views.indexOf(this.current_view);
+        },
         switch_view: function(
             view_type=null, view_id=null, creatable=null, display=true) {
             if (view_id !== null) {
@@ -1001,9 +1004,8 @@
                         return this.add_view_id(view_id, view_type)
                             .then(set_current_view);
                     } else {
-                        var i = this.views.indexOf(this.current_view);
                         this.current_view = this.views[
-                            (i + 1) % this.views.length];
+                            (this.view_index + 1) % this.views.length];
                     }
                     if (found()) {
                         break;

sao/src/tab.js

@@ -784,7 +784,9 @@
                 return false;
             }
             var compare = Sao.common.compare;
-            return ((this.screen.model_name === attributes.model) &&
+            return (
+                (this.screen.view_index === 0) &&
+                (this.screen.model_name === attributes.model) &&
                 (this.attributes.res_id === attributes.res_id) &&
                 (compare(
                     this.attributes.domain || [], attributes.domain || [])) &&

tryton/tryton/gui/window/form.py

@@ -105,7 +105,9 @@ class Form(TabContent):
     def compare(self, model, attributes):
         if not attributes:
             return False
-        return (self.model == model
+        return (
+            self.screen.view_index == 0
+            and self.model == model
             and self.res_id == attributes.get('res_id')
             and self.attributes.get('domain') == attributes.get('domain')
             and self.attributes.get('view_ids') == attributes.get('view_ids')

tryton/tryton/gui/window/view_form/screen/screen.py

@@ -538,6 +538,10 @@ class Screen:
     def number_of_views(self):
         return len(self.views) + len(self.view_to_load)
 
+    @property
+    def view_index(self):
+        return self.__current_view
+
     def switch_view(
             self, view_type=None, view_id=None, creatable=None, display=True):
         if view_id is not None: