[racket-dev] unicode Delta vs unicode increment

I recently pushed this commit:

http://git.racket-lang.org/plt/commit/6babc9ec56d60fba9f3fe6969901a378da266f82

that changes DrRacket's reponse to typing \Delta<tex-compress-shortcut>.

I see now, however, that this commit changed it FROM U+0394 to U+2206,
ie from Delta to Increment. Here's the chars in question:

  http://www.fileformat.info/info/unicode/char/2206/index.htm
  http://www.fileformat.info/info/unicode/char/394/index.htm

But I think this is backwards and the pull request commentary suggests
that there might be some confusion.

So I think I should probably revert this commit and stick with \Delta
as the actual Delta character.

Am I getting this right? Or am I backwards yet again...?

Thanks,
Robby