Empty line after list missing

Type the following in WYSIWYG:

• enter "Text"
• hit Enter
• click on the unordered list button
• enter "item"
• hit enter
• click again on the unordered list button
• enter "Text"

Then switch to wiki mode. You'll get:

Text

* item
Text

which is not correct. There should be a space before the last "Text". If you go back to WYSIWYG mode you'll get:

Text
     * item Text

which is obviously not correct and a consequence of the fact that there's a line missing.

Note: This was discovered thanks to the automated testing of Selenium