Index: openacs-4/packages/xowiki/tcl/xowiki-www-procs.tcl
===================================================================
RCS file: /usr/local/cvsroot/openacs-4/packages/xowiki/tcl/xowiki-www-procs.tcl,v
diff -u -N -r1.355 -r1.356
--- openacs-4/packages/xowiki/tcl/xowiki-www-procs.tcl	17 May 2018 07:35:53 -0000	1.355
+++ openacs-4/packages/xowiki/tcl/xowiki-www-procs.tcl	18 May 2018 10:15:21 -0000	1.356
@@ -367,7 +367,7 @@
                       [export_vars -base [$package_id url] {{m revisions}}]]
     if {$live_revision == ${:revision_id}} {
       # latest revision might have changed by delete_revision, so we have to fetch here
-      xo::dc 1row get_revision "select latest_revision from cr_items where item_id = :item_id"
+      xo::dc 1row -prepare integer get_revision {select latest_revision from cr_items where item_id = :item_id}
       if {$latest_revision eq ""} {
         # we are out of luck, this was the final revision, delete the item
         $package_id delete -name ${:name} -item_id $item_id