Clipboard-feature not useable twice or more in the same template?

[SILENT-da]

By using the 'clipboard'-feature, i recognized something: It's not possible to use it twice or more in the same template.

In example, when using this (for replying)...

%from(bracketName(";"),bracketMail(),toclipboard)% %header.set(to,clipboard)%

...it works fine. But when using this...

%from(bracketName(";"),bracketMail(),toclipboard)% %header.set(to,clipboard)%

%cc(bracketName(";"),bracketMail(),toclipboard)% %header.set(cc,clipboard)%

...it copies the 'cc'-data to both header-parts, 'to' and 'cc'.