Fix fsync absence when `fsync=N` parameter specified #898

Job	Run time
build (linux-gcc)	13m 50s
build (linux-clang)	12m 17s
build (macos)	10m 59s
build (linux-i686-gcc)	13m 4s
build (android)	40s
build (windows-cygwin-64)	15m 40s
build (windows-cygwin-32)	15m 39s
build (windows-msys2-64)	12m 47s
build (android-recovery, ubuntu-22.04, aarch64-linux-android32)	41s
	1h 35m 37s

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