fixup! add issuer check and generate warning #2027

Job	Run time
address_ub_sanitizer	10m 8s
basic_clang	5m 24s
basic_gcc	5m 5s
check_update	1m 29s
check_docs	48s
check-ansi	2m 44s
enable_non-default_options	4m 9s
external-test-cf-quiche	3m 36s
external-test-pyca (1.51.0, 3.9)	9m 4s
external-tests	10m 58s
full_featured	5m 42s
fuzz_tests	3m 0s
legacy	3m 59s
minimal	2m 35s
memory_sanitizer	17m 53s
no-deprecated	4m 48s
no-legacy	5m 14s
non-caching	15m 13s
no-shared-macos	5m 41s
no-shared-ubuntu	3m 50s
out-of-readonly-source-and-install-macos	10m 8s
out-of-readonly-source-and-install-ubuntu	7m 10s
self-hosted (freebsd-13.2)	1s
self-hosted (ubuntu-arm64-22.04)	1s
threads_sanitizer	5m 23s
	2h 24m 3s

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