Randomly exploring doesn't rescan on new generated chunks

## Some information
Operating system: Windows 10 Version 1903
Java version: 1.8.0_191
Minecraft version: 1.12.2
Baritone version: 1.2.10
Forge mods (if used): None

## Exception, error or logs
If the bot randomly explores for a block it won't rescan on new generated chunks leading to ignoring to get to the desired block and endless pathing.

## How to reproduce
Enable exploreForBlocks and then go on a flat map with villages and use #goto chest. If there isn't a village with a chest generated in your range it will path endless through the map never getting to a chest.

## Final checklist
- [x] I have included the version of Minecraft I'm running, baritone's version and forge mods (if used).
- [x] I have included logs, exceptions and / or steps to reproduce the issue.
- [x] I have not used any OwO's or UwU's in this issue.