Issues with level 4852f2fa

[KarelPeeters]

I think there are two issues with level 4852f2fa:

• in the first example one of the output pixels is wrong
• the right solution is not accepted

I'm not sure what is causing the latter, if I check 4852f2fa.json the output seems correct to me. Is there some cached intermediate artifact that's wrong?

I hope it's actually a bug and not just me misunderstanding the rule!