Only the first link works (when there are many links) in any shape in PDF Export from Diagram Menu

[ane-gabriela]

Steps to reproduce:

1. Create a new Diagram
2. Add some shapes eg. Text, Textbox, Square
3. Add some text in each one of them
4. Select a peace of text and add a link
5. Select other pieces of text and add other links
6. Click on File > Export as > PDF... > Export > Open in New Window

Expected results: All links are functional and when clicked redirect to the corresponding page.

Actual results: Only the first link from each shape is functional, although the text is blue and underline for the others, the user isn't redirected to the selected page - the text can't be clicked.
export.pdf

Environment: Windows 10, XWiki 13.4.5, Chrome 96, Diagram Application (Pro) 1.17.1

[snazare]

not reproducing on xwiki 15.10.10, probably due to more recent improvements. However we should investigate #215