add appropriate filtering for SSH key list

- fix osusers.views.ListSshPublicKeys
- add changelog entry

gnuviechadmin/osusers/views.py

@@ -107,6 +107,10 @@ class ListSshPublicKeys(
     model = SshPublicKey
     context_object_name = 'keys'
 
+    def get_queryset(self):
+        return SshPublicKey.objects.filter(
+            user=self.get_hosting_package().osuser)
+
     def get_context_data(self, **kwargs):
         context = super(ListSshPublicKeys, self).get_context_data(**kwargs)
         context.update({