Set proper entity category restrictions when release is set to be empty

Signed-off-by: Ivan Kanakarakis <ivan.kanak@gmail.com>

Author: c00kiemon5ter

src/saml2/assertion.py

@@ -481,6 +481,8 @@ def post_entity_categories(maps, sp_entity_id=None, mds=None, required=None):
 
                         for attr in attrs:
                             restrictions[attr] = None
+                        else:
+                            restrictions[''] = None
 
             return restrictions
 

src/saml2/entity_category/swamid.py

@@ -70,7 +70,7 @@
 HEI = 'http://www.swamid.se/category/hei-service'            # Deprecated from 2021-03-31
 
 RELEASE = {
-    '': [''],
+    '': [],
     SFS_1993_1153: ['norEduPersonNIN', 'eduPersonAssurance'],
     (RESEARCH_AND_EDUCATION, EU): NAME + STATIC_ORG_INFO + OTHER,
     (RESEARCH_AND_EDUCATION, NREN): NAME + STATIC_ORG_INFO + OTHER,