Full Screen view in TinyMCE can destroy post

[RanYanivHartstein]

In certain cases, switching to full screen view in TinyMCE can destroy a post's contents.

Here's one way to reproduce this.

1. Get the file bad-full-screen.txt attached to this ticket

2. Create a new post in any 3.0 blog

3. Switch to HTML

4. Paste from above file

5. Update/publish (or anyway, save)

6. Switch to Visual Editor

7. Hit Full Screen

Now, the Full Screen view doesn't just hide the text, it removes it - when you switch back to normal view, the post is empty (except for a line break with mce_bogus="1").

This looks like it's caused by something in the last three paragraphs. When I paste the text in paragraph by paragraph, the paragraph that seems to be responsible is the one that starts with "To begin with, we're going to..." (the third paragraph from the end). For e.g., If I go through the above process, but between stage 8 and stage 9 I remove that paragraph, everything works fine.

Possibly related - #9950 , #7069

[mdawaffe]

I can reproduce the problem with just the string "undefined" as the post_content.

Furthermore, once in Visual mod with the string "undefined" as the post_content, I cannot switch back to HTML mode.

[mdawaffe]

replacement file for originally submitted copyright content

[mdawaffe]

The originally submitted file was copyright. I replaced it with something generic (and smaller).

[azaozz]

This seems fixed in TinyMCE 3.3 [16090], feel free to reopen if the word "undefined" still causes problems when switching to full screen.