Inexistant default version ?

[catuss-a]

https://github.com/amutu/zhparser/blob/master/zhparser.control

Shows default version 2.2 however there is no zhparser--2.2.sql

I had the issue without providing an extension version when creating it such as :

CREATE EXTENSION zhparser; however CREATE EXTENSION zhparser VERSION '2.1'; fixed it

Postgres version 9.6

(Postgres 13+ worked fine without specifying the version)