Reference for Kelim 19:10

מִשְׁפֶּלֶת שֶׁנִּפְחֲתָה מִלְּקַבֵּל רִמּוֹנִים, רַבִּי מֵאִיר מְטַמֵּא. וַחֲכָמִים מְטַהֲרִים, מִפְּנֵי שֶׁבָּטַל הָעִקָּר, בָּטְלָה הַטְּפֵלָה:

A dung-basket that was damaged so that it will not hold pomegranates: Rabbi Meir declares it susceptible to impurity, but the Sages say that it is pure, because if its primary function is annulled, the secondary one is also annulled.

Jastrow