I know this isn't ready yet, but that's why we need a bug in the bug tracker. :)
Steps to repro:
- create a new page in classic editor
- include [[Image:Wiki.png]]
- edit in visual editor
Image should display in edit mode. After saving, nothing should have changed.
Image becomes invisible in edit mode. After saving, it turns into literal HTML:
<img src="http://upload.wikimedia.org/wikipedia/commons/b/bc/Wiki.png" alt="Wiki.png" height width="200px"></img>