Spring Security userDetailsPasswordService cannot be null error when using ReactiveUserDetailsService

Describe the bug When using Spring Security 7.0.0-M3 and defining a ReactiveUserDetailsService the application fails to start with error java.lang.IllegalArgumentException: userDetailsPasswordService cannot be null

To Reproduce - start.spring.io and generate a new 4.0.0 project with webflux and security - Add SecurityWebFilterChain and ReactiveUserDetailsService beans. - start the application and observe the error

Expected behavior The application should start and default a userDetailsPasswordService.

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