Error after using Link formatting

[sachinrekhi]

If I add a formatted link to an empty Quill document, then press enter at the end of the line and add text to the subsequent line, I get an error in the console and the subsequent line text is not added.

Steps for Reproduction

1. Go to beta.quilljs.com
2. Add http://www.sachinrekhi.com to empty editor
3. Select the full text, press the link formatting button, specify url as http://www.sachinrekhi.com
4. Place cursor at the end of the now-linkified line
5. Press enter
6. Enter "test" on next line

Expected behavior:
test will appear on the next line with no errors

Actual behavior:
test does not show up and the console has the following error:

Platforms:
Chrome 50 on Mac 10.11

Version:
Quill 1.0 Beta 3