quick column fix

edit-mode/function/ganttConfig.js

@@ -334,11 +334,13 @@ var allColumns = [
 	},
 	{ name: "planned_duration", label: "Baseline Duration (Day)", align: "center", min_width: 50, resize: true, editor: editor.duration, template: function (text) {
 		let start;
+		let end;
 		text.planned_start ? start = text.planned_start : start = text.start_date;
+		text.planned_end ? end = text.planned_end : end = text.end_date;
 
 		let plannedDuration = gantt.calculateDuration({
 			start_date: new Date(start),
-			end_date: new Date(text.end_date)
+			end_date: new Date(end)
 		})
 		return plannedDuration;
 	}},