false conflict: moving a single field into a new oneof

[gggrafff]

Hello!

Protobuf docs say that you can safely move a single field into a new oneof and may be able to move multiple fields if it is known that only one is ever set: https://protobuf.dev/programming-guides/proto3/#reuse

But protolock considers it a conflict

[nilslice]

Hi!

Thanks for filing this issue. I am very tight for time these days, and am not sure I'd be able to commit to a fix, but happy to help if you or someone else wanted to pick it up.