Hamdallah was visiting the courthouse at Yatta, south of Hebron, and the photo was published on the website of the Supreme Judicial Council.
Social media users slammed Hamdallah for consuming Israeli products. They also accused him of hypocrisy because evidently the "unity government" attacked Hamas for allowing Israeli products into Gaza a few days ago.
The Supreme Judicial Council website then replaced the photograph with another that did not show the offending beverages. I cannot tell if the bottles were removed before this image was taken or if they were Photoshopped out. My bet is Photoshop since if this second image was available when the article was written they would have used it. Also, the new image was created 8 hours after the initial image was.
Looks like a very good image editing job, though.
UPDATE: Video (h/t Bob Knot)