Does the Purim Katan feast exempt the Purim feast of Adar II?

Does the Purim Katan feast exempt the Purim feast of Adar II?

There is a mitzvah for Ashkenazim to slightly increase the feast. It is written in the book Sefat Emet (Megillah, page 6b) that one might fulfill the obligation of the Purim feast of Adar II with this. Therefore, one should explicitly intend not to exempt oneself from the mitzvah of the Purim feast of Adar II with this.

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