IMDb 'warning' makes me unsure how to proceed with title change

Somehow, a DVD marketing title for the "Beaver" Pilot ("Leave it to Beaver - The Lost Episode") got substituted as the title for the

whole series (tt0050032). I tried to submit a title change, and got a serious warning (in red type, even!) that

submitting my information - with a detailed explanation - would result in this information being "merged"

with the existing title. The implication of the message was not clear (to me) - I don't know what it means

that a title would be "merged" with an existing title - so I clicked "Save for Later" so

I could ask for advice on how to proceed. Basically, "Leave it to Beaver - The Lost Episode" needs to be

reverted to its original form, "Leave it to Beaver" as the series title. Please advise.