Rename method Refactoring leads to infinite warning in latest image.

I could not find what was the problem.

/Users/ducasse/Documents/Pharo/images/P8Evaluator/P8Evaluator.image
Pharo8.0.0
Build information: Pharo-8.0.0+build.247.sha.57e3eb84cac4564882b47b87e2a977199fbe2470 (64 Bit)
Unnamed

May be Spec2 side effect.
Good news
        - reproducible
        - can stop with cmd .

https://github.com/pharo-project/pharo/issues/3275

Stef