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 -r1.284.2.80 -r1.284.2.81
--- openacs-4/packages/xowiki/tcl/form-field-procs.tcl	11 Feb 2020 13:13:05 -0000	1.284.2.80
+++ openacs-4/packages/xowiki/tcl/form-field-procs.tcl	11 Feb 2020 20:29:40 -0000	1.284.2.81
@@ -712,7 +712,7 @@
     # consequence the comparison is not case sensitive. Note that the
     # answer_words have to be provided in lower case as well.
     #
-    set value [regsub -all {[ ]+} ${:value} " "]
+    set value [string trim [regsub -all {[ ]+} ${:value} " "]]
     if {[string match "*lower*" [lindex ${:correct_when} 1]]} {
       set value [string tolower $value]
       set words [lrange ${:correct_when} 2 end]