In my team, some we help each other with the merges. I.e. my code is merged back to trunk by someone else. It seems like the author info not is fully preserved during a merge. When I do annotate (blame) the merger is shown as the author.
Have the merger done something wrong or isn’t the original author preserved in a merge?
If your server does merge tracking and your client tools are version 1.5 or later, this will work:
svn blame --use-merge-history TARGET