Adding link to an image inside a div does not work properly

The problem is the following:

I have an image inside a div. I want to add a hyperlink to that image, so I select the image clicking over it and then click the add link button on the toolbar. The new link is not added on the image. Instead it is added at the beginning of the document.
The only way to add a link to an image into a div:

- Add it in code view
- Editing the div content, selecting the image with the arrow keys + shift and THEN click in the add link button on the toolbar.

The problem seems to be that when an image inside a div is selected with the mouse click, the div loses his focus and something strange happens.