Index: openacs-4/packages/categories/tcl/category-trees-procs.tcl
===================================================================
RCS file: /usr/local/cvsroot/openacs-4/packages/categories/tcl/category-trees-procs.tcl,v
diff -u -N -r1.31.2.6 -r1.31.2.7
--- openacs-4/packages/categories/tcl/category-trees-procs.tcl	26 Apr 2019 13:05:05 -0000	1.31.2.6
+++ openacs-4/packages/categories/tcl/category-trees-procs.tcl	26 Apr 2019 13:26:20 -0000	1.31.2.7
@@ -317,7 +317,7 @@
     ad_proc -public get_tree {
         -all:boolean
         {-subtree_id ""}
-        tree_id:required
+        tree_id
         {locale ""}
     } {
         Get all categories of a category tree from the cache.