[VELOCITY-904] Add a flag for better backward compatibility with null macro arguments

• Type: Improvement
• Status: Resolved
• Priority: Minor
• Resolution: Fixed
• Affects Version/s: 2.0
• Fix Version/s: 2.2
• Component/s: Engine
• Assignee: Claude Brisson
• Reporter: Claude Brisson
• Created: 15/Oct/18 12:53
• Updated: 22/Jan/20 17:28
• Resolved: 01/Jan/20 21:28

Description

See this comment :

#macro(testmacro $parameter)
  $parameter
#end

#testmacro($return)

which used to print "$return" (when $return is null or undefined) and we now get "$parameter".