include permissions in admin

contracts/admin.py

 import copy
 
 from django.contrib import admin
+from django.contrib.auth.models import Permission
 from django.utils.html import format_html
 from fieldsets_with_inlines import FieldsetsInlineMixin
 from import_export import resources
@@ -327,6 +328,8 @@ class SigneeAdmin(MarkdownxGuardedModelAdmin):
 # END Signing parties
 
 
+admin.site.register(Permission)
+
 for model in (
     SigneeSignature,
     ContracteeSignature,