[plt-scheme] Control+Backspace as backward-kill-word?

[Elena Garrulo]

2009/7/8 Matthew Flatt <mflatt at cs.utah.edu>:
> Both "delete and "backspace" were broken in 4.2. I had already fixed
> "delete", but for some reason didn't notice that "backspace" was also
> broken. Both are now fixed in SVN.

Is such fix available in 4.2.1? On my Ubuntu 9.04 it doesn't work.

Thanks.