Britain’s opposition Labour Party has called for an immediate ceasefire in Israel’s war on Gaza, a change of policy that seeks to avoid another parliamentary rebellion over an issue that has caused deep internal divisions. Lawmakers will vote on Wednesday on an opposition Scottish National Party motion calling for an immediate ceasefire. That threatened to reprise a row in Labour after nearly a third of its lawmakers defied the leadership last year to back calls for a ceasefire. Labour drafted its own amendment that calls for an “immediate humanitarian ceasefire”. It also added some conditions…