connection: fix svacer issue #3534

Job	Run time
testing_mac_os (1.13, macos-11, brew)	13m 3s
run-tests-ee (release/linux/x86_64/1.10/, sdk-1.10.15-0-r598, false, false, false)	6m 49s
run-tests-ce (1.13, 1.10, false, false)	7m 22s
testing_mac_os (1.13, macos-11, 1.10.14)	16m 11s
run-tests-ee (release/linux/x86_64/2.10/, sdk-gc64-2.10.8-0-r598.linux.x86_64, false, true)	7m 47s
run-tests-ce (1.13, 2.8, false, false)	7m 13s
testing_mac_os (1.13, macos-12, brew)	10m 9s
run-tests-ee (release/linux/x86_64/2.11/, sdk-gc64-2.11.1-0-r598.linux.x86_64, true, true)	9m 22s
run-tests-ce (1.13, 2.10, false, false)	7m 54s
testing_mac_os (1.13, macos-12, 1.10.14)	15m 15s
run-tests-ce (1.13, master, false, false)	13m 34s
run-tests-ce (master, true, 1.13)	15m 13s
run-tests-ce (master, true, 1.18, false)	13m 22s
	2h 23m 14s

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