invalid DeleteRange response: "..." with 1.26.0-rc.0

[neoaggelos]

Summary

kubernetes/kubernetes@421213b is now checking that the delete response range is valid. Kine seems to be returning an invalid response, which contains a ResponseRange instead of a ResponseDeleteRange, looking at https://github.com/k3s-io/kine/blob/master/pkg/server/delete.go#L30-L50

I've done some early testing with fixing the response format, but not sure if there is a blast radius that I am missing. Hoping to get some feedback from kine maintainers.

I'm creating a PR with my work, let's see where the discussion takes us.