Comment 5 for bug 33479

This could be fixed in three steps.
1. When the "Add a comment" section is expanded, focus the "Save Changes" button, then instantly focus the comment field. (Borrow this code from, or share it with, the "No, I'd like to report a new bug" section on the bug-reporting page.)
2. Halve the height of the "Comment" field. (This would also discourage unhelpful chattiness.)
3. Split "Add a comment" and "Add an attachment" into separate expandable sections, with a single "Save Changes" button outside both. (This would fix bug 53635, and also prevent people from thinking that a comment was compulsory when adding an attachment.)

Step 1 would make browsers show both the "Save Changes" button and the comment field if the window is tall enough. Steps 2 and 3 would greatly increase the probability that the window is tall enough.