Versioning library should support change of operation template

There are situations where an operation need to be changed to use a different operation template, e.g. to change from POST to PUT or from synchronous to asynchronous. I don't see a way to do this with the versioning library. I tried what seemed like the obvious thing to me:

[Playground example](https://cadlplayground.z22.web.core.windows.net/?c=aW1wb3J0ICJAdHlwZXNwZWMvaHR0cCI7CtIZdmVyc2lvbmluZyI7Cgp1c2luZyBUeXBlU3BlYy5IdHRwO9AVVskyOwoKQMdAZWQoxxhzKQpAc2VydmljZSh7CiAgdGl0bGU6ICJXaWRnZXQgU8YbIiwKfSkKbmFtZXNwYWNlIERlbW%2FHGzsKCmVudW0gyFAgxEZ2MSzEBjIsCn0KCm1vZGVsIMdRxB5Aa2V5IGlkOiBzdHLlAJggIHdlaWdodDogaW50MzLEEWNvbG9yOiAicmVkIiB8ICJibHVlIsQZQGFkZOsAvy52Mikg5ACZyk59CgpAZXJyb3LHekXEDMV5Y29kZctkbWVzc2FnzzpwYXRjaCBvcCB1cGRhdGU8VD4oQGJvZHkgxAU6IFQpOiBUIHzGVeQBUs8wQXN5bmPUNUFjY2VwdGVkUmVzcG9uc2XLRGludGVyZuQBWOYBJecBWuYBLHJlbW927wDxCiDHbiBpc8cKPMY7PvcBI9My5gCqyTd9Cg%3D%3D&e=%40typespec%2Fopenapi3&options=%7B%7D)

But this complains about a duplicate operation name. Is there another way to do this?

A "real life" instance of this problem is [PR 25027](https://github.com/Azure/azure-rest-api-specs/pull/25027).