How to ignore CVS keyword tags in eclipse diff

As much as i like the eclipse diff/merge perspective, when dealing with large projects and multiple branches that need to be merged occasionally there's one feature missing:

Is there any way to set the eclipse diff to ignore the CVS tags like $Author:$, $Revision:$ and so on?

Since these tags are different in all the branches, a "compare to another branch" always results in a few hundred files showing up with differing tags but no apparent differences in the code. (of course tags differ only after fixing a bug in a few hundred files in branch and head. but that happens a lot where i'm working. no comments on that please.)