bug#9810: cw in viper mode clobbers clipboard

[Eli Zaretskii]

> Date: Thu, 20 Oct 2011 10:44:31 -0600
> From: Bob Nnamtrop <bobnnamtrop@gmail.com>
> Cc: 9810@debbugs.gnu.org
> 
> just typing 'cw' should not cause either clipboard or
> primary to be altered. The word is highlighted but that should be it,
> it should not go into primary (or clipboard or any other selection).
> The way it is now the common (for me) work-flow (put something into
> primary, go somewhere else, use cw then <middel mouse> to change that
> word) described above does not work anymore. The changes to primary
> and clipboard described in NEWS have nothing to do with this (or
> should not).

Can you tell me which function does the cw command run?