namespace: ignore nested records

In Gsk-4.0 the record Gsk.PathPoint contains a nested record.
In case the tag didn't have a name we would just go up the tree
until we found one. In case of a nested record this results in
Gsk.PathPoint being found twice, the second time with the nested
record which should be record.

Fix by not going up for "record" which should never be needed there.

pgidocgen/namespace.py

@@ -697,12 +697,18 @@ def get_name(elm):
 
                 return n
 
+            # these can be nested, so if there is not name, don't go up the tree
+            # or we might up ending up with the same name as the parent record
+            requires_name = ["record"]
+
             l = []
             tags = []
             current = e
             name = get_name(current)
             if name is not None:
                 l.append(name)
+            elif current.tagName in requires_name:
+                continue
             shadowed = False
             while current.tagName != "namespace":
                 # this gets shadowed by another entry, bail out