[4.1] Ext.app.Controller.getRef - update references on beforedestroy

[LesJ]

I think the array of references should be updated (ref removed) when the cached component is destroyed.

Ext.define('Ext.app.Controller', {
    ....
    getRef: function(ref, info, config) {
        ...
        if (!cached) {
            me.refCache[ref] = cached = Ext.ComponentQuery.query(info.selector)[0];
            if (!cached && info.autoCreate) {
                me.refCache[ref] = cached = Ext.ComponentManager.create(info, 'component');
            }
            if (cached) {
                cached.on('beforedestroy', function() {
                    me.refCache[ref] = null;
                    Ext.Array.remove(me.references, ref); // <-- add this line?             
                });
            }
        }


        return cached;
    },
    ....

EDIT:
The Ext.app.Controller class needs better internal doc. I think the ref and getRef methods are private, but addRef and hasRef are public. This is not documented.

EDIT 6/30
After rethinking, I'm not sure if there's a need to make this change, so please feel free to close this ticket.

[scottmartin]

Done.

Scott.