Comment 14 for bug 1865900

With Bionic's apache 2.4.29-1ubuntu4.12:

"SSLProtocol TLSv1.3 TLSv1.2" - works
"SSLProtocol TLSv1.3 +TLSv1.2" - does not work
"SSLProtocol all -SSLv3" - does not work