scottr.org

The Problem:

(Solution found via StackOverflow)

You have a UITableView that has
allowsMultipleSelectionDuringEditing set to YES, since you’d like to
allows for bulk deletes or other actions. Prior to adding bulk editing support
you also could perform a swipe-to-delete when not in editing mode. However,
you’ve just noticed that swipe-to-delete no longer works. And you want both.

The Solution:

So it turns out that you can’t have allowsMultipleSelectionDuringEditing
active and have swipe-to-delete work at the same time. So what you need to do
is only enable allowsMultipleSelectionDuringEditing when the table view is in
editing mode.

This is achieved by a simple addition to your UITableViewController
sub-class.

- (void)setEditing:(BOOL)editing animated:(BOOL)animated {
    [super setEditing:editing animated:animated];
    self.tableView.allowsMultipleSelectionDuringEditing = editing;
}

And with that swipe-to-delete works, and so does bulk editing!