Manal al-Wakeel and her extended family of 30 people thought they were going home.

Displaced from their home in Gaza City months ago, Ms. al-Wakeel and relatives began packing their bags on Monday and preparing to dismantle their tent in Rafah, at the southern edge of the Gaza Strip.

Hamas had announced that it had accepted a cease-fire proposal from Qatar and Egypt, leaving many Gazans thinking that a truce was imminent. Their joy was short-lived; it soon became clear that Hamas was not talking about the same proposal endorsed days earlier by Israel, which said the two sides remained far apart.