[Bug] !go undo no longer functions due to parsing change in Avrae

[killcano]

What alias/snippet is this for? !go

Describe the bug !go undo no longer works. I believe Avrae's change to parsing broke how it worked previously. In !go there is this IF: if args.last('undo') and prevBack:

Because it is parsing the args, "undo" no longer works, but "-undo" does.

To Reproduce Steps to reproduce the behavior:

1. Join init with a map.
2. Place character on map.
3. Move character using !go
4. !go undo
5. Nothing happens.

Expected behavior Previously the argument "undo" was accepted by the code if args.last('undo') and prevBack: It would undo the previous !go movement, careful to save before the actual undo so you could even undo the undo.

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