Data property is added twice for components

[Rich-Harris]

REPL. This code gets generated:

var child = new Child({
	root: component.root,
	data: child_initial_data,
	data: child_initial_data,
	_bind: function(changed, childState) {
		var state = component.get(), newState = {};
		if (!child_updating.items && changed.items) {
			newState.items = childState.items;
		}
		component._set(newState);
		child_updating = {};
	}
});

Should be a nice easy fix

[funkybob]

In that repl this line is also duplicated:

		p: function update(changed, state) {
			var child_changes = {};
			var child_changes = {};

[Rich-Harris]

fixed in b4ade9d