Can not export "duplicate" titles

[panther7]

Cannot use duplicate title strings, like:

{
  "Best url": "http://example1.com",
  "Best url": "http://example2.com"
}

Possible solution:

[
  {
    "title": "Best url",
    "url": "http://example1.com"
  },
  {
    "title": "Best url",
    "url": "http://example2.com"
  }
]