Backspace doesn't work on TJSProseMirror components if content is blank when edit button is clicked
Think I found a bug with TJSProseMirror.
When I click the edit button on an editor component with no text in it, the backspace key is non-functional.
Then, if I save it with text and click to edit it again, I can backspace.
But if I delete the text and save the editor as empty again, I can't backspace again until I save it with more text.
When I click the edit button on an editor component with no text in it, the backspace key is non-functional.
Then, if I save it with text and click to edit it again, I can backspace.
But if I delete the text and save the editor as empty again, I can't backspace again until I save it with more text.
