round priority on update too (#10186)

* round priority on update too

* move the fix to Task sanitizeTransform

* refactor the task.priority parsing

website/server/controllers/api-v3/tasks.js

@@ -458,7 +458,6 @@ api.updateTask = {
     let oldCheckList = task.checklist;
     // we have to convert task to an object because otherwise things don't get merged correctly. Bad for performances?
     let [updatedTaskObj] = common.ops.updateTask(task.toObject(), req);
-
     // Sanitize differently user tasks linked to a challenge
     let sanitizedObj;
 
@@ -471,6 +470,7 @@ api.updateTask = {
     }
 
     _.assign(task, sanitizedObj);
+
     // console.log(task.modifiedPaths(), task.toObject().repeat === tep)
     // repeat is always among modifiedPaths because mongoose changes the other of the keys when using .toObject()
     // see https://github.com/Automattic/mongoose/issues/2749
@@ -481,7 +481,6 @@ api.updateTask = {
     }
 
     setNextDue(task, user);
-
     let savedTask = await task.save();
 
     if (group && task.group.id && task.group.assignedUsers.length > 0) {