Email list with duplicate emails

Hi Sugar Clubbers,

With a distribution list that has duplicate email addresses, does the following still apply, which is taken from Sugar Market Support. I might be just being fussy on the language because the below statement reads if the same email address is included in MORE THAN ONE list... what happens if the duplicate emails are in the same list?

Deduplicating Recipients
If the same email address is included in more than one selected recipient list, Sugar Market automatically flags that email as a duplicate and ensures the email is only sent once to each unique email address.
Thanks for any comments