bug#40351: Flymake error count

[sir]

I've created a flymake backend based on the flymake docs: 
https://www.gnu.org/software/emacs/manual/html_node/flymake/An-annotated-example-backend.html#An-annotated-example-backend

It works, but I'm also using Eglot, and noticed that on the error count 
displayed on the status line of emacs it doesn't count properly for my backend. 
It displays a number 1 for each error it discovers, but Eglot errors are able 
to increase the number of its backend. This is what displays my status line:

(PHP//l company Flymake[1 1 1 3 0] ...)

It should display ... Flymake [3 3 0] ...

The attached image will explain it better. I'm attaching the backend also, if 
you need to see the code (though it's actually pretty much the same as the 
example in docs).

How could I make my backend increase the error count instead of creating other 
counter?

eglot-flymake.png
Description: PNG image

flymake-phpcs.el
Description: Text document