Index: openacs-4/packages/xowiki/tcl/form-field-procs.tcl
===================================================================
RCS file: /usr/local/cvsroot/openacs-4/packages/xowiki/tcl/form-field-procs.tcl,v
diff -u -N -r1.266 -r1.267
--- openacs-4/packages/xowiki/tcl/form-field-procs.tcl	11 Apr 2018 21:50:05 -0000	1.266
+++ openacs-4/packages/xowiki/tcl/form-field-procs.tcl	19 Apr 2018 08:25:41 -0000	1.267
@@ -1383,8 +1383,11 @@
     set :widget_type text
   }
   number instproc render_input {} {
-    ::html::input [:get_attributes type id name value disabled {CSSclass class} min max step value \
-                       autofocus autocomplete formnovalidate multiple pattern placeholder readonly required] {}
+    set boolean_atts [:booleanAttributes required readonly disabled \
+        formnovalidate autofocus]
+    ::html::input [:get_attributes type id name value {CSSclass class} \
+        min max step autocomplete placeholder {*}$boolean_atts] {}
+    :resetBooleanAttributes $boolean_atts
   }
 
   ###########################################################