Debian 11 libegl1-mesa (20.3.5-1) - backport a fix

[Hiren]

Hi,

Please see
https://github.com/Smithay/smithay/issues/438#issuecomment-1159750086

We're looking to backport a mesa 22.0 fix to 20.3 which is what debian 11
ships with.

Could you assist with how this can be done please. Thanks.