MB3 158b: Food Trapped, Picked or Brought from Outside the Techum on Shabbos (325:7-8)

If there is a doubt whether the food was brought from outside the techum the food is prohibited until after Shabbos is over (ספק מוכן אסור). Do you have to wait כדי שיעשו?

If a non-Jew brought water from outside the techum on Shabbos.