[IMP]: web, tools: static inheritance do not disclose t-inherit* directives

Before this commit, when a template was inheriting from another
the template mentionned its t-inherit

This has been deemed overkill as the information is irrelevant to the caller
i.e. the caller just wants the template and doesn't care how they've been computed

After this commit, only t-name and attributes not related with inheritance
are disclosed

[FIX]: base: static inheritance propagates other attributes

When doing a inherit in primary mode, the original attributes on the root node of
the inheriting template were not propagated

After this commit they are

1 files changed, 4 insertions, 3 deletions

diff --git a/odoo/tools/template_inheritance.py b/odoo/tools/template_inheritance.py
index 77f738f2e2a..ad497d99bb7 100644
--- a/odoo/tools/template_inheritance.py
+++ b/odoo/tools/template_inheritance.py
@@ -138,9 +138,10 @@ def apply_inheritance_specs(source, specs_tree, inherit_branding=False, pre_loca
                         else:
                             comment = content
                     source = copy.deepcopy(spec_content)
-                    for attr in ('t-name', 't-inherit'):
-                        if node.get(attr):
-                            source.set(attr, node.get(attr))
+                    # only keep the t-name of a template root node
+                    t_name = node.get('t-name')
+                    if t_name:
+                        source.set('t-name', t_name)
                     if comment is not None:
                         text = source.text
                         source.text = None