Success! Looks like we've fixed this one. According to our records the fix was applied for EXTJS-7749 in 4.2.0.265.
  1. #1
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    Default ExtJS 4.1.3 Ext.data.Model.destroy() breaks when model is part of more than one store

    ExtJS 4.1.3 Ext.data.Model.destroy() breaks when model is part of more than one store


    In ExtJS 4.1.3 the callback handler in the Ext.data.Model.destroy() iterates the stores and removes the record from each store. Since this is also mutating the Ext.data.Model.stores collection, the code breaks on the second iteration with doing store.remove(model, true) when the store variable is undefined.

    Code:
            callback = function(operation) {
                args = [me, operation];
                if (operation.wasSuccessful()) {
                    for(storeCount = stores.length; i < storeCount; i++) {
                        store = stores[i];
                        
                        // Remove this record from Store. Avoid Store handling anything by passing the "isMove" flag
                        // BUG: Here the stores collection is mutated
                        store.remove(me, true);
                        if (isNotPhantom) {
                            store.fireEvent('write', store, operation);
                        }
                    }
                    me.clearListeners();
                    Ext.callback(options.success, scope, args);
                } else {
                    Ext.callback(options.failure, scope, args);
                }
                Ext.callback(options.callback, scope, args);
            };
    Maybe the fix is to iterate the collection in reverse order?

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    Default


    Thanks for the report! I have opened a bug in our bug tracker.

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