Fix fsync absence when `fsync=N` parameter specified #894

Job	Run time
build (linux-gcc)	13m 4s
build (linux-clang)	11m 41s
build (macos)	12m 9s
build (linux-i686-gcc)	12m 49s
build (android)	35s
build (windows-cygwin-64)	15m 47s
build (windows-cygwin-32)	15m 11s
build (windows-msys2-64)	12m 51s
build (android-recovery, ubuntu-22.04, aarch64-linux-android32)	38s
	1h 34m 45s

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