They had an announcement to make so they fixed it.
Announcement: No more editing in 'Pending Approval' files. Have to wait until approved. It's an attempt to make the submissions procedure 'more stable'.
Of course, if you make a mistake in your submission (very, very easy with the new 'improved' submissions page) it means that you won't be able to correct the mistake before it's approved or rejected. And if it's rejected for something that you could have corrected before review, that's just too bad and it'll take more time as you resubmit.
Announcement: No more editing in 'Pending Approval' files. Have to wait until approved. It's an attempt to make the submissions procedure 'more stable'.
Of course, if you make a mistake in your submission (very, very easy with the new 'improved' submissions page) it means that you won't be able to correct the mistake before it's approved or rejected. And if it's rejected for something that you could have corrected before review, that's just too bad and it'll take more time as you resubmit.

