modifying "Image-Link" makes bad behaviour with Ckeditor

[zekoolweb]

Hello, i have one (or plus) very basic "Image-Link" like this :

<a href="/url"><img alt="" src="http://dummyimage.com/300x169/000/fff" style="width: 300px; height: 169px;" />This is my image link</a>

<a href.... </a>

<a href.... </a>

THE PROBLEM : If i double-click on image, and change it, Ckeditor ERASE the code.

One very weird thing is : the "undo" function seems to help, but this is non sense for the user !

Please,
How can we fix that issue ??

Regards from France