Index: openacs-4/packages/xowiki/tcl/repeat-procs.tcl
===================================================================
RCS file: /usr/local/cvsroot/openacs-4/packages/xowiki/tcl/repeat-procs.tcl,v
diff -u -N -r1.5.2.10 -r1.5.2.11
--- openacs-4/packages/xowiki/tcl/repeat-procs.tcl	21 May 2017 08:57:09 -0000	1.5.2.10
+++ openacs-4/packages/xowiki/tcl/repeat-procs.tcl	21 May 2017 10:21:03 -0000	1.5.2.11
@@ -67,6 +67,7 @@
       # don't propagate "repeat" and "label" properties
       if { [string match "repeat=*" $s] || [string match "label=*" $s] } continue
       if { "required" eq $s} {set is_required true; continue}
+      if { "disabled" eq $s} {my set_disabled true}
       lappend result $s
     }
     return [list $is_required [join $result ,]]
@@ -295,6 +296,16 @@
     return $html
   }
 
+  repeatContainer instproc value_if_nothing_is_returned_from_form {default} {
+    # Here we have to distinguish between two cases to:
+    # - edit mode: somebody has removed a mark from a check button;
+    #   this means: clear the field
+    # - view mode: the fields were deactivted (made insensitive);
+    #   this means: keep the old value
+
+    if {[my exists disabled]} {return $default} else {return ""}
+  }
+
   Class create repeattest -superclass CompoundField
   repeattest instproc initialize {} {
     my create_components  [subst {