This is a bit of a corner case, as the only audits you seem to fail are when you do exactly what you just did, yet the edits you suggest improvements upon would have improved the post (and the edit).
You didn't do anything wrong, you just didn't do what the system was expecting you to do, which was reject the edit. The system expects you to do what several others did with the same edit.
I've lifted the two day review block, and there's no lasting consequences to this. It looks like you get zapped with this when you make heroic attempts to salvage fundamentally bad or extremely trivial edits. If improving the edit means completely re-doing everything the edit was going to do, just pop the post open in a new tab, reject the edit in the queue and suggest a new sane or more substantial edit.
You can do this right from review if you want, but be aware that bad edits are food for audits and audits have no way of knowing if you actually did improve an edit. Therefore, making 'improve' pass the audit would drastically lower their effectiveness in that queue.
These are designed to be flypaper for those that simply do not pay attention to what they're doing, they just want some badges. You're actively thinking, engaged and interested in what you're doing, so you don't have to worry too much about it. Just keep the above in mind and you should be fine.