Fix back and forward browser navigation so NestedList updates.
Fix back and forward browser navigation so NestedList updates.

markbrocato/extjs-reactor,sencha/extjs-reactor,sencha/extjs-reactor,dbuhrman/extjs-reactor,markbrocato/extjs-reactor,sencha/extjs-reactor,dbuhrman/extjs-reactor,markbrocato/extjs-reactor,dbuhrman/extjs-reactor,markbrocato/extjs-reactor,dbuhrman/extjs-reactor,sencha/extjs-reactor