Test

Fix missing addref for __unset #1740

Job	Run time
Generate Matrix	9s
Suite / ALPINE_X64_ASAN_DEBUG_ZTS	27m 8s
Suite / LINUX_X32_DEBUG_ZTS	12m 26s
Suite / BENCHMARKING	12m 48s
Suite / LINUX_X64_RELEASE_NTS	20m 46s
Suite / LINUX_X64_ASAN_DEBUG_ZTS	41m 46s
Suite / FREEBSD_NTS	11m 24s
Suite / MACOS_ARM64_DEBUG_NTS	17m 54s
Suite / COMMUNITY_${{ matrix.type }}	0s
Suite / WINDOWS_X64_ZTS	34m 3s
Suite / COVERAGE	0s
Suite / MSAN	0s
Suite / SOLARIS	0s
Suite / PECL	0s
Suite / LINUX_PPC64_ASAN_DEBUG_ZTS	0s
Suite / OPCACHE_VARIATION	0s
Suite / LIBMYSQLCLIENT	0s
	2h 58m 24s

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