Only happens if you click on the newly created parameter. So I've created additional logic to handle the case the user does that. If you click on any other canvas item, then all bets are off - the rename just will not happen, as the system has lost sight of what it is that is being loaded.
Tell that to Microsoft. The cause is a well-known bug^H^H^Hfeature of Windows that it inherited from MSDOS. This only happens if you are trying to install Ravel more than once simultaneously.