ies-env ssl-validate doesn't validate expire dates

ies-env ssl-validate

SSL-Certificate is valid.
DNS:schleusner.sitepark.local, DNS:*.schleusner.sitepark.local, DNS:schleuse.sitepark.local, DNS:*.schleuse.sitepark.local
Not Before: Aug 27 13:33:03 2020 GMT
Not After : Aug 27 13:33:03 2022 GMT

Here is a expired certificates that shouldn't pass ssl-validate:

ssl.crt ssl.key