Since 1.3 the placeholder doesn't show when you delete all content

[eamodio]

Please describe the a concise description and fill out the details below. It is otherwise difficult for the others to efficiently understand your request and often just wastes everyone's time with back and forth—time that could be otherwise used to fix your issue. Providing a minimal, complete and verifiable example will further increase your chances that someone can help.

Steps for Reproduction

Quill 1.3

1. Visit https://codepen.io/quill/pen/KzZqZx (from the playground)
2. Type some text
3. Delete all the text
4. 🐛 observe that the placeholder doesn't re-appear

Quill 1.2.6

1. Visit https://codepen.io/eamodio/pen/Mvjazx (a fork of the above referencing 1.2.6)
2. Type some text
3. Delete all the text
4. 👍 observe that the placeholder does re-appear

I haven't dug deep enough yet, but this might be worse than just the placeholder not showing -- it might think there is still content (maybe a line break or something).

Expected behavior:

Placeholder should re-appear as it did prior to v1.3

Actual behavior:

Placeholder doesn't appear

Platforms:

Include browser, operating system and respective versions

Chrome: Version 60.0.3112.78 (Official Build) (64-bit)
Windows 10 Creators Update

Version:

Run Quill.version to find out

1.3

[eamodio]

Doh -- looks like this is a duplicate of #1594