Back-porting module bug fix to 2.2‏

Hello,

I have encountered a uri module digest authentication bug on ansible 2.2.0:
https://github.com/ansible/ansible/issues/16936

The issue will be resolved at 2.3 by the following pull request:
https://github.com/ansible/ansible/pull/18736

I have applied the patch on my 2.2.0 deployment and it seems to work fine.
The release of stable 2.3 is two months away and I wonder if this fix can be pushed sooner to the upcoming 2.2.1 (or 2.2.2).
And if so, what is procedure and what can i do?