RestClient : interceptors are executed 2 times

[rawadolb]

Describe the bug
When RestCient is initialized by a RestTemplate using RestClient.builder(restTemplate) the interceptors are executed 2 times.

To Reproduce
Create a RestTemplate with an interceptor (loggingInterceptor to make it simple).
Initialize a RestClient and then perform a call restClient.get().uri(uri).retrieve().body(YourObject.class)
LoggingInterceptor will be executed 2 times because 2 ClientHttpRequestInterceptor object are created. (Please find attached)

Expected behavior
The interceptor must be executed once

[jhoeller]

This should be fixed in 6.1.4 snapshots already: #32038