Store opts unique

Without the deep copy all opts were added to the origin.
E.g causing Lambas to be run on each "entity" instead of just the selected
child.

Author: theseal

src/pyff/resource.py

@@ -339,6 +339,10 @@ def _replace(self, r: Resource) -> None:
         raise ValueError("Resource {} not present - use add_child".format(r.url))
 
     def add_child(self, url: str, opts: ResourceOpts) -> Resource:
+        """
+        Spent 3 man days. Make sure to make a deep copy of opts.
+
+        """
         r = Resource(url, opts)
         if r in self.children:
             log.debug(f'\n\n{self}:\nURL {url}\nReplacing child {r}')

src/pyff/samlmd.py

@@ -209,7 +209,7 @@ def _extra_md(_t, resource_opts, **kwargs):
                 if md_source is not None:
                     location = md_source.attrib.get('src')
                     if location is not None:
-                        child_opts = resource.opts.copy(update={'alias': entityID})
+                        child_opts = resource.opts.model_copy(update={'alias': entityID}, deep=True)
                         r = resource.add_child(location, child_opts)
                         kwargs = {
                             'entityID': entityID,
@@ -311,7 +311,7 @@ def parse(self, resource: Resource, content: str) -> EidasMDParserInfo:
                                 info.scheme_territory, location, fp, args.get('country_code')
                             )
                         )
-                        child_opts = resource.opts.copy(update={'alias': None})
+                        child_opts = resource.opts.model_copy(update={'alias': None}, deep=True)
                         child_opts.verify = fp
                         r = resource.add_child(location, child_opts)