Remove multiple "___comment___" keys with platform: json

[FBente]

We use a spreadsheet like the basic example in Google Drive.
In our Locfile we specify the platform: json that produces multiple "___comment___" keys.
Now we have problems reading the produced strings-xyz.json localization files with some JSON-parsers that don't allow duplicated keys.
Is there a way to ignore these [COMMENT] rows for the json platform completely?