Uploads for retired robots

A lot of times, when I stop my rumble client there will be several battles completed that just stay on my machine until the next time I start my rumble client. I've always thought this was fine in the past, but if one of those battles is for a robot who is retired before the next time I start my client, it seems like when it is uploaded the retired robot reappears in the rankings. Should I be trying to avoid this? And if so, how do I clean out the stored battles before starting the rumble client?

I always clear out roborumble/files/* and roborumble/temp/* before starting up my client, that clears out any cached results from last time. Would be nice (and not hard) to protect against that case somehow though.