Why « Add compatibility with docker-py v2.0 » commit isn't in v2.2.1.0 release?

Hi,

do you know if this commit https://github.com/ansible/ansible/commit/e2a1ce2916e9b87fe1ad4a1011c04ef8d2faf046 present in devel branch will be merged in next stable branch?

I don’t understand:

why this patch isn’t in this release? Issue is here: https://github.com/ansible/ansible/issues/20492

Best regards,
Stéphane