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https://issues.apache.org/jira/browse/VELOCITY-926?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17022288#comment-17022288
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Thomas Mortagne commented on VELOCITY-926:
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bq. Thanks again to Thomas Mortagne for finding this bug.

Thanks you for the quick fix !

> Regression: Macro arguments names cannot collide with external references 
> names
> -------------------------------------------------------------------------------
>
>                 Key: VELOCITY-926
>                 URL: https://issues.apache.org/jira/browse/VELOCITY-926
>             Project: Velocity
>          Issue Type: Bug
>          Components: Engine
>    Affects Versions: 2.0, 2.1
>            Reporter: Claude Brisson
>            Assignee: Claude Brisson
>            Priority: Major
>             Fix For: 2.2
>
>
> Consider the following example:
> {code}
> #macro( test $foo $bar )
>   $foo $bar
> #end
> #set($foo = 'foo')
> #set($bar = 'bar')
> #test( $bar, $foo )
> {code}
> The expected result would be "{{bar foo}}", but since 2.0 we get the 
> incorrect result "{{bar bar}}", as if the first inner {{$foo}} macro argument 
> was overwritting the second argument evaluation.



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