Fix support for sending server notifications with request-specific Mc… #845

Job	Run time
build (windows-latest, Release)	6m 33s
build (windows-latest, Debug)	8m 13s
build (ubuntu-latest, Release)	4m 23s
build (macos-latest, Release)	4m 22s
build (ubuntu-latest, Debug)	4m 22s
build (macos-latest, Debug)	6m 37s
publish-coverage / publish-coverage	39s
	35m 9s

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