Unmaintained project with active community fork - what to do with the package?

[Danila Kiver via arch-general <arch-general@xxxxxxxxxxxxx>]

Hi all,

please help me in handling the following situation.

The  bash-bats  package ( https://www.archlinux.org/packages/community/any/bash-bats )
uses the upstream repository ( https://github.com/sstephenson/bats ), which is no longer
maintained by its owner ( https://github.com/sstephenson/bats/issues/150 ).

Looks like the project moved to a community-maintained fork ( https://github.com/bats-core/bats-core ),
which already reached version 1.1.0 and includes crucial fixes, while the original project
stays untouched for a long while.

What would be the correct approach here: ask the maintainer of  bash-bats  package to switch
to the active fork, or leave this deprecated package as it is and create an AUR package for the fork?

Regards,
Danila Kiver.