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@@ -128,7 +128,7 @@ export default class Collection {
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if ( hasInitialItems ) {
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for ( const item of initialItemsOrOptions ) {
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this._items.push( item );
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- this._itemMap.set( this._getItemId( item ), item );
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+ this._itemMap.set( this._getItemIdBeforeAdding( item ), item );
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}
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}
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@@ -657,7 +657,7 @@ export default class Collection {
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* @param {Object} item Item to be added.
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* @returns {String}
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*/
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- _getItemId( item ) {
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+ _getItemIdBeforeAdding( item ) {
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const idProperty = this._idProperty;
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let itemId;
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