I'm reviewing a first post (question) and saw that the question was poorly spelled and formatted so I attempted an edit. I edited the the title, the post and the tags, and filled the edit summary. I then noticed that "Save Edit" is disabled.
What is the reason for the disabled link? Is this a matter of insufficient rep? I don't have the edit privilege yet, but I was able to go into edit mode. Maybe some required field was missing? I'm not sure, but I think that some tooltip on the disabled "save Edit" link would help figuring out what's wrong.
When I access the question directly (not through review), and click edit, the Save Edit link is enabled.
Here are some screenshots:
Save Edits disabled on review:
Save Edits enabled on direct link to question: