如何使用TextMate作为命令行subversion消息编辑器？

Simply setting the SVN_EDITOR variable to "mate" does not get the job done. It opens TextMate when appropriate, but then when I save the message and exit, I'm prompted to continue, abort or try again. It seems like the buffer isn't returned to the svn command for use.Simply setting the SVN_EDITOR variable to "mate