App crashes when running MarkdownKit version 1.6

[neilpoulin]

After upgrading from version 1.5 to 1.6 via cocoapods, my app crashed when trying to parse markdown text. The error was thrown when this method in the MarkdownParser was called:

  open func removeCustomElement(_ element: MarkdownElement) {
    guard let index = customElements.index(where: { someElement -> Bool in
      return element === someElement
    }) else {
      return
    }
    customElements.remove(at: index)
  }

The error was because element was not retained. Downgrading to 1.5 fixed the issue for me. Please let me know if I can provide any more helpful information.