title: Can not write text at left align after adding Image with a caption in Froala editors
body: <p>Steps to reproduce the issue::</p>
  
  <ol>
  <li>Open the froala editor on <a href="https://www.froala.com/wysiwyg-editor" rel="noreferrer">https://www.froala.com/wysiwyg-editor</a>.</li>
  <li>Remove everything in the editor.</li>
  <li>Insert an image.</li>
  <li>Add a caption to the image.</li>
  <li>Click outside the image and try to type.</li>
  </ol>
  
  <p><strong>Issue</strong>: After adding image caption, If write any text then it always written inside the image area[blue color]</p>
  
  <p><strong>Video:</strong></p>
  
  <p><img src="https://user-images.githubusercontent.com/18446533/43506019-63c226bc-9586-11e8-9857-b097bac487f2.gif" alt="ezgif com-video-to-gif"></p>
  
  <p><strong>In Froala:</strong> <a href="https://github.com/froala/wysiwyg-editor/issues/2597#issuecomment-386163085" rel="noreferrer">https://github.com/froala/wysiwyg-editor/issues/2597#issuecomment-386163085</a></p>
  
  <p>Can anyone help me?</p>