Incorrect use of two "int i" instances. (#3759) #2623

Job	Run time
multiple-arch-aarch64	9m 28s
multiple-arch-armv7	12m 25s
cygwin64-cache	3m 51s
utest-regression-blackbox-test	5m 54s
fast	1s
cygwin64	9m 54s
build-centos7	3m 54s
build-ubuntu18	2m 14s
build-ubuntu16	3m 31s
build-cross-aarch64	7m 8s
build-cross-arm	7m 18s
build-ubuntu20	2m 57s
coverage	4m 9s
multiple-arch-amd64	1m 59s
test-done	1s
	1h 14m 44s

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