[imp] Image is lost when saving draft

[Anna Vidal]

Hello,

I compose a message in HTML format.
Paste an image from clipboard in ckeditor.
The email is saved automatically, or I click the "save as draft" button.

In drafts mailbox the preview works fine, I see the image pasted.
The problem appears when I resume the message. The image is not found.

I'm running H5 (6.2.24)

Any idea?
Thanks!