adding a blank value in a list

some times we need to add a blank value in a list. 


just as a note blank value will not be added if you are not adding a space in it



code 1 :     <cfset lstBOtitle = listappend(lstBOtitle,"",",")/>   -- will not work

code 2:     <cfset lstBOtitle = listappend(lstBOtitle," ",",")/>   -- will work
(above code has a space in it )