I have been trying to create two collection with a common model kind. I am getting the following error:

"Uncaught enyo.Store.addRecord: duplicate record added to store for kind app.ImageModel with primaryKey set to id and the same value of 67774271 which cannot coexist for the kind without the ignoreDuplicates flag of the store set to true ".

Following are the two collection i have defined...

enyo.kind({
name: "app.FeatureCollection",
kind: "enyo.Collection",
model: "app.ImageModel",
defaultSource: "appF",
...
...
});


enyo.kind({
name: "app.SearchCollection",
kind: "enyo.Collection",
model: "app.ImageModel",
defaultSource: "appS",
...
...
});
And the model which i am using is as follows:

enyo.kind({
name: "app.ImageModel",
kind: "enyo.Model",
readOnly: true,
....
....
});
At one point i am setting like this:

this.set("data", new app.FeatureCollection());

and in another,

this.set("data", new app.SearchCollection());


Setting "ignoreDuplicates" to true on "enyo.Store", but someone clarify why this situation is coming? If the data received have some common data as fetched previously, this error comes. For one collection and a model, this doesn't appear,even though some data is same as previous, but as i go for two separate collection with a common model, the error comes somehow!