[FIX] tracker comments links e.g. from since last visit module should display the comments tab of the tracker item (there is no comzone like for wiki pages), closes https://dev.tiki.org/bug4682

git-svn-id: file:///var/local/code.tiki.org/tikisvn/trunk@47286 b456876b-0849-0410-b77d-98878d47e9d5