Screenshot explaining issue with visualeditor
These are the steps:
*Create a preformatted multiline text, inserting a space before each line, in source mode.
*Open visualeditor, select the text inside the box (the preformatted text)
*Change text type to "paragraph"
*The text is badly converted, return characters appear on the line. If the text is saved the return characters are lost.
*This happens in other cases too, tab symbols are displayed sometimes.