Fixing a world edit misstake

A while ago, i asked for a WE for my pixelart project.
Sadly, there was a misstake... the created gab that goes down almost all the way to bedrock is turned the wrong direction... it goes south instead of west...
Could someone please help me fix this case by rolling back the mistakely done world edit and making it correct?
The cut itself was correct, it just needs to be turned by 90°

You told me "Towards Archeron"... I made it run "towards Archeron"...
...I guess we had different ideas of what "Towards Archeron" means.

I'll do what I can, but know that //regen command will produce a completely different result.

That's why I had you there to CONFIRM when I did it, remember?

You said it was right when I did it.

It wasn't until later you told me it was facing the wrong way.

Rulyon wrote:You told me "Towards Archeron"... I made it run "towards Archeron"...
...I guess we had different ideas of what "Towards Archeron" means.

I'll do what I can, but know that //regen command will produce a completely different result.

That's why I had you there to CONFIRM when I did it, remember?

You said it was right when I did it.

It wasn't until later you told me it was facing the wrong way.

besides //regen there is also rollback isnt there?
I can not recall you asking me if you cut the world in the correct direction.
I just assumed you did it right since it looked right and i didnt have a look on it from above.
If nessessary, i will try my best to cover up irregularities when //regen is used.