WYSIWYG editor corrupts markup when image in the alias of links

Round tripping between the wysiwyg and markup editor corrupts link aliases that contain an image and text.

To reproduce use the following markup:

[!firefox.png|width=100, height=43! Firefox homepage|http://firefox.com]
or 
[!image.png|align=center!|Link Text]

Original Report
I have a region of content in the homepage of my personal space which gets "lost" when the page saves or if I toggle between WYSIWYG and Wiki Markup. The source is as follows:

| JHED Profile | Michael's CarePage | I am geofcorb on del.icio.us

... which is rendered properly in the attached screenshot.

If I now go back and edit the page again, the source turns into:

| JHED Profile | [] | I am geofcorb on del.icio.us

... and my reference to the graphic and link disappear.