Markdown generated by react-rte does not render properly when loaded back into it

[mplis-jetsetter]

Steps to reproduce on demo site:

1. Switch output to Markdown
2. Type a few words into the editor (e.g. "foo bar baz")
3. Highlight all text and click either italics button in toolbar
   • Rich text editor should show "foo bar baz"
   • Markdown editor should show "_foo bar baz_"
4. Highlight middle word (e.g. "bar") and click italics button again
   • Rich text editor should show "foo bar baz"
   • Markdown editor should show "_foo _bar_ baz_"
5. Copy generated markdown and refresh page
6. Switch output to Markdown and paste into markdown editor
   • Rich text editor shows "foo _bar baz_"

The steps above show a similar issue for strikethrough styling, though not for bold.

edit: I realized that you don't necessarily have to de-style text in the middle of the string to reproduce this bug. De-styling text at the end of the string will also cause this bug, though de-styling text at the beginning does not. For example, "foo_ bar baz_" renders properly in the editor, but "_foo bar _baz" does not.

[mplis-jetsetter]

Looks like this is a similar bug to #89, but it doesn't look like a corresponding issue was while filed in draft-js-export-markdown as recommended.

I haven't looked at it too much, but it's possible that this PR in draft-js-export-markdown could solve this problem.