69ab640b6b
duplicated sockets a multicast address is bound and either SO_REUSEPORT or SO_REUSEADDR is set. But actually it works for the following combinations: * SO_REUSEPORT is set for the fist socket and SO_REUSEPORT for the new; * SO_REUSEADDR is set for the fist socket and SO_REUSEADDR for the new; * SO_REUSEPORT is set for the fist socket and SO_REUSEADDR for the new; and fails for this: * SO_REUSEADDR is set for the fist socket and SO_REUSEPORT for the new. Fix the last case. PR: 179901 MFC after: 1 month