being inserted in visual editor when highlighting and overwriting text

[AdamCapriola]

I've noticed   characters in my content at times when inspecting the HTML of published posts, which is troublesome because the typeface I'm using treats the spacing of   and regular spaces differently, and I think I've finally figured out how to replicate the inserting of these rogue  .

1. Have content in the visual editor.

2. Highlight some of the text.

3. Overwrite the text, press spacebar, type some more text, and press spacebar again.

4. Now preview the post and inspect the paragraph:

Voila.  

I am on OSX 10.10.2 and am replicating this on Chrome. This ticket might be related: https://core.trac.wordpress.org/ticket/31157

[AdamCapriola]

Here are some screencaps of the process:

[iseulde]

It looks like TinyMCE creates a new text node for that edit and then pads the end with   if you use a space.

[Kuzmanov]

It appears only if you're doing a double space.

[iseulde]

It looks like that's just contenteditable doing it. Spaces are padded at the end of text nodes. I'm going to close this as a duplicate of #31157 since it's the same issue really. Spaces are padded with   in Chrome.