Current behavior

The new note button stops working after entering a non existent URL to convert.

Expected behavior

A failure message appears about the previous URL to note conversion.
AND
The new note button does not stop working after a failure.

Steps to reproduce

1. Open the new note selection (Ctrl+N).
2. Select new markdown note from URL.
3. Enter a non existent URL, e.g. https://www.bgvoirhbvoojwscj.com
4. Hit Enter. (No new note is made, as expected.)
5. Try clicking the new note button (or Ctrl+N).

Dev tools console:

Workaround

Reload Boostnote (Ctrl+R) to fix the issue temporarily.

Environment

• Version : 0.13.0
• OS Version and name : Ubuntu 16.04