Modifying Photo: Avoid System Alert

According to the documentation for PHContentEditingOutput

"If your app edits the contents of assets already in the Photos library—including assets your app has itself recently added—Photos prompts the user for permission to change the asset’s content. If instead your app uses the

initWithPlaceholderForCreatedAsset:

However, I always get the system alert "Allow app to modify this photo?".

This is how I am adding the photo:

        var assetPlaceholder:PHObjectPlaceholder!

        PHPhotoLibrary.sharedPhotoLibrary().performChanges({
            let creationRequest = PHAssetCreationRequest.creationRequestForAssetFromImageAtFileURL(NSURL(fileURLWithPath: originalImagePath))
            assetPlaceholder = creationRequest!.placeholderForCreatedAsset
          
            let editingOutput = PHContentEditingOutput(placeholderForCreatedAsset: assetPlaceholder!)
            editingOutput.adjustmentData = adjustmentData
            imageData.writeToURL(editingOutput.renderedContentURL, atomically: true)
          
            creationRequest!.contentEditingOutput = editingOutput
        }, completionHandler: { (success:Bool, error: NSError?) in
            handler(assetPlaceholder.localIdentifier, error)
        })

Then, to edit it I use:

        let inputOptions = PHContentEditingInputRequestOptions()
        inputOptions.networkAccessAllowed = true
        inputOptions.canHandleAdjustmentData = { adjustmentData in
            return adjustmentData.formatIdentifier == thisAppFormatIdentifier
        }
       
        asset.requestContentEditingInputWithOptions(inputOptions, completionHandler: { ( editingInput, info) -> Void in
            let editingOutput = PHContentEditingOutput(contentEditingInput: editingInput!)


            PHPhotoLibrary.sharedPhotoLibrary().performChanges({
                let changeRequest = PHAssetChangeRequest(forAsset: asset)
                editingOutput.adjustmentData = adjustmentData
                imageData.writeToURL(editingOutput.renderedContentURL, atomically: true)
                changeRequest.contentEditingOutput = editingOutput
            }, completionHandler: { (success:Bool, error: NSError?) in
                handler(error)
            })
        })

This always fires the alert. What I can I do to prevent the alert from showing?