[FIX] web_editor, website: avoid returning children of inactive view

Before this commit, for the following view tree:
P (active)
|
I (inactive)
|
II (active)
When calling `customize_template_get()` on 'P', it would wrongly return 'II'.
It shouldn't, since its parent 'I' is inactive.

Step to reproduce:
- Go to /shop
- Enable ecommerce categories
- Enable Collapsible Cateogories
- Disable ecommerce categories
- Collapsible categories is still shown even if its parent got archived

Test writen in 12.0 with #35154

closes odoo/odoo#35155

Signed-off-by: Jérémy Kersten (jke) <jke@openerp.com>

addons/web_editor/models/ir_ui_view.py

@@ -168,10 +168,10 @@ class IrUiView(models.Model):
             if called_view not in views_to_return:
                 views_to_return += self._views_get(called_view, options=options, bundles=bundles)
 
-        extensions = view.inherit_children_ids
         if not options:
-            # only active children
-            extensions = view.inherit_children_ids.filtered(lambda view: view.active)
+            return views_to_return
+
+        extensions = view.inherit_children_ids
 
         # Keep options in a deterministic order regardless of their applicability
         for extension in extensions.sorted(key=lambda v: v.id):