Index: openacs-4/packages/acs-content-repository/sql/postgresql/content-folder.sql
===================================================================
RCS file: /usr/local/cvsroot/openacs-4/packages/acs-content-repository/sql/postgresql/content-folder.sql,v
diff -u -r1.46.2.1 -r1.46.2.2
--- openacs-4/packages/acs-content-repository/sql/postgresql/content-folder.sql	1 Jul 2005 19:58:37 -0000	1.46.2.1
+++ openacs-4/packages/acs-content-repository/sql/postgresql/content-folder.sql	26 Nov 2005 21:22:53 -0000	1.46.2.2
@@ -185,7 +185,8 @@
 
   -- parent_id = 0 means that this is a mount point
   if new__parent_id != 0 and 
-     content_folder__is_registered(new__parent_id,''content_folder'',''f'') = ''f'' then
+    content_folder__is_folder(new__parent_id) and
+    content_folder__is_registered(new__parent_id,''content_folder'',''f'') = ''f'' then
 
     raise EXCEPTION ''-20000: This folder does not allow subfolders to be created'';
     return null;