Fix BLOCKSTRETCHACTION situation after handles #4643

Job	Run time
linux-cmake	1m 48s
linux (CFLAGS="-O1 -fno-omit-frame-pointer -fsanitize=address -fno-var-tracking" --disable-bindin...	3m 28s
linux (CC="clang")	4m 6s
macOS	6m 55s
linux (--enable-release)	30m 34s
linux (--enable-gcov --disable-bindings --disable-docs CFLAGS="-O0 -g")	5m 21s
linux (--disable-write --disable-docs)	4m 45s
mingw	30m 31s
linux (CFLAGS="-O2 -m32" --disable-bindings --disable-docs)	3m 41s
linux (CFLAGS="-O2 -fno-omit-frame-pointer -fsanitize=undefined -fno-var-tracking" --disable-bind...	12m 9s
mips32-big-endian	10m 55s
ppc64-big-endian	7m 26s
mingw-cmake	3m 27s
vs2019	5m 1s
vs2019-ninja	4m 50s
	2h 14m 57s

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