Index: openacs-4/packages/acs-subsite/tcl/subsite-procs.tcl
===================================================================
RCS file: /usr/local/cvsroot/openacs-4/packages/acs-subsite/tcl/subsite-procs.tcl,v
diff -u -N -r1.68.2.2 -r1.68.2.3
--- openacs-4/packages/acs-subsite/tcl/subsite-procs.tcl	22 Apr 2019 10:10:59 -0000	1.68.2.2
+++ openacs-4/packages/acs-subsite/tcl/subsite-procs.tcl	16 May 2019 08:16:34 -0000	1.68.2.3
@@ -88,7 +88,7 @@
 }
 
 ad_proc -public subsite::pivot_root {
-    -node_id
+    -node_id:required
 } {
 
     Pivot the package associated with node_id onto the root.  Mounting
@@ -108,6 +108,13 @@
         #TODO: swap the application groups for the subsites so that
         #TODO: registered users is always the application group of the root
         #TODO: subsite.
+        #
+        #TODO: adjust sitenode hierachy?
+        #TODO: permissions on main subsite (has to be always world readable)
+        #TODO: memberships on site / subsite        
+        #TODO: address implications on permission management when hierachy flips around
+        #TODO: test caching implications
+        #TODO: probably more
     }
 }