So today I saw that the Clay Soldiers mod had been updated, so I decided to bring my Single Player world from 1.2.5 over to 1.3.2 (The mod is a big part of that world). So When I loaded it up, 3 chunks had updated to an ocean biome and cannot be replaced. I even went into the same world in Mcedit from 1.2.5 and copied the chunks into the same spot on the new version, but it keeps updating and won't allow me to replace those chunks. I'm honestly not sure what to do to fix this.
Weird Chunk Errors