Git tag doesn't work

I try to set contret version of the library in platformio.ini:

lib_deps =

So, I’ve got an error:

conq: repository does not exist.
fatal: Could not read from remote repository.

But when I removed tag v1.2.0 from the lib path, everything was fine.

In example of lib_deps (Redirecting...) says that it’s possible way:

lib_deps =

So where my mistake?

I figured out that problem cause in the ‘dog’ (@) symbol instead of ‘sharp’ (#) in the git lib path before tag name.

lib_deps = - works fine.

See docs