Clicking in file copied from pastebin crashes editor

[FreddieRa]

Loading the file, running it, and editing only using keyboard all works fine, however if you click somewhere in the file you are given the error:

bad argument #1 (string expected got nil):
stack traceback:
[C]: in function 'error'
machine:631: in function machine:618
(...tail calls...)
/bin/edit.lua:224: in upvalue 'setCursor'
/bin/edit.lua:620: in local 'onClick'
/bin/edit.lua:673: in main chunk
(...tail calls...)
[C]: in function 'xpcall'
machine:751: in global 'xpcall'
/lib/process.lua:63: in function </lib/process.lua:59>

This also doesn't clear the screen, so it gets meshed with whatever code you were looking at.