4ffe3ab proxy: access provider directly not through be_ctx

1 file Authored by pbrezina 5 years ago, Committed by jhrozek 5 years ago,
    proxy: access provider directly not through be_ctx
    
    Modules are initialized as part of dp_init_send() but be_ctx->provider is set
    only after this request is finished therefore it is not available here.
    
    Resolves:
    https://pagure.io/SSSD/sssd/issue/3812
    
    Reviewed-by: Jakub Hrozek <jhrozek@redhat.com>