No, none of 

KeyAttr => 'foobar',

[download]
KeyAttr => 'test',

[download]
KeyAttr => '',

[download]
KeyAttr => undef,

[download]

are proper usage according to the docs.

In reply to Re^6: XML::Simple - Duplicate Node Overwrites by ikegami
in thread XML::Simple - Duplicate Node Overwrites by awohld

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