add missing substitutions feed in AlternateRoot (#8119)

extra/modules/root.py

@@ -29,6 +29,7 @@ from qommon import emails
 from qommon.sms import SMS
 from wcs.categories import Category
 from wcs.formdef import FormDef
+from wcs.data_sources import NamedDataSource
 from qommon.tokens import Token
 from qommon.admin.emails import EmailsDirectory
 from qommon.admin.texts import TextsDirectory
@@ -791,7 +792,9 @@ class AlternateRootDirectory(OldRootDirectory):
         return d
 
     def _q_traverse(self, path):
+        get_publisher().substitutions.feed(get_session())
         get_publisher().substitutions.feed(get_request().user)
+        get_publisher().substitutions.feed(NamedDataSource)
 
         # set app_label to Publik if none was specified (this is used in
         # backoffice header top line)