Updating links (relative/absolute) bug

[chang-zhao]

When I rename a page like
"bugs/start" into "bugs",
the renaming itself works well.
Page "/bugs/start" becomes "/bugs".

But updating the links on other pages that were [[bugs/start]] make them [[bugs]].
It means that they point now not relatively to the root, but relatively to the current namespace.

For example, if that link was on a page "/flies/crap", then the updated link [[bugs]] would point to non-existing "/flies/bugs".
So please mind that having separator or not in an inner link makes a difference for the resulting namespace base.