PDF Exporter does not export information from links produced by macros

Hello,
I've tested PDF export functionality in XWiki Enterprise 6.0.1 and 6.3 and found that PDF exporter ignores (i.e. does not export) data produced from links produced by the macros.
E.g.: let's have a page1 in the space and ExportPage with following content:

{{groovy}}
println 10;
println "[[page1]]"
{{/groovy}}

and while exporting this page the pdf exporter will correctly show number 10 and link to page1, but when I include &includelinks=2 to the export url, then the page1 content is not shown after the content of exported page.
This looks like a bug to me. Thanks! Karel