Backlinks update changes an absolute reference to the moved page into one relative to the current wiki

How to reproduce:

• on the main wiki, create 2 pages, A and B
• from page A, create a link to page B, but make it an absolute one (including the wiki reference, like this:

  [[B>>xwiki:B.WebHome]]
  

• rename page B to C (on the same wiki), with the default options
• page A is updated automatically to update the link it had to page B to page C

Expected result:
After update, the content of page A is

[[B>>xwiki:C.WebHome]]

so that the page is functional in the same way (e.g. if it was included from another page in another wiki).

Actual result:
After update, the content of page A is

[[B>>C.WebHome]]

The reference was transformed from an absolute reference into one relative to the current wiki, not clear why...