you patch has:

Content-Type: text/plain; charset=8bit
Content-Transfer-Encoding: quoted-printable

and git am doesn't handle it

$ git am python2/cur/1614253357.R13620585686638879435.jama\:2\,RS
error: cannot convert from 8bit to UTF-8
fatal: could not parse patch

if I manually change it to

Content-Type: text/plain; charset=utf-8
Content-Transfer-Encoding: quoted-printable

like most other patches have, then it works, that's why I've asked you to fix your e-mail client/server or git push it somewhere so I can just cherry-pick from there.

Anyway I've manually applied it to master-next with Backport URL 

replaced with:

Adding oe-devel ML.

Regards,