[OPEN-986] CompositeField doesn't work in GridEditor - with solution

[harley.333]

The following change makes it work.

doLayout: function(shallow, force) {
if (this.rendered) {
var innerCt = this.innerCt;

innerCt.forceLayout = !!this.ownerCt && this.ownerCt.forceLayout;
innerCt.doLayout(shallow, force);
}
},