Fix ssl3_do_write() to correct handle retries #792

Job	Run time
address_ub_sanitizer	19m 9s
basic_clang	7m 13s
basic_gcc	7m 35s
buildtest	11m 28s
check_docs	1m 28s
check_update	2m 5s
check-ansi	4m 37s
enable_brotli_and_zstd_dynamic	9m 26s
enable_brotli_and_asan_ubsan	15m 52s
enable_brotli_dynamic	9m 24s
enable_non-default_options	6m 46s
enable_zstd_and_asan_ubsan	13m 0s
enable_zstd_dynamic	7m 16s
enable-tfo (ubuntu-latest)	7m 21s
enable-tfo (macos-latest)	16m 59s
external-test-cf-quiche	7m 41s
external-test-pyca (1.51.0, 3.9)	10m 55s
external-tests	14m 46s
fips_and_ktls	10m 51s
legacy	6m 16s
memory_sanitizer	18m 37s
minimal	3m 55s
no-deprecated	7m 15s
no-legacy	9m 6s
non-caching	19m 52s
no-shared (ubuntu-latest)	5m 33s
no-shared (macos-latest)	9m 12s
out-of-source-and-install (ubuntu-latest)	12m 23s
out-of-source-and-install (macos-latest)	26m 31s
threads_sanitizer	7m 46s
	5h 10m 18s

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