Help with GL_TUPLE syntax

Hi all,

I currently work on get the new gitlab version ready, but this is the 
worst upgrade I have ever done ;(

I have now the problem that I must pull in two different git versions 
for devel/gitaly.
The previous version used one bundled git which I pulled in with:
GL_TUPLE= 
  gitlab-org:git:v${GITLAB_GIT_VERSION}:_build/_build/deps/git-v${GITLAB_GIT_VERSION_SHORT}

The current version is here:
https://cgit.freebsd.org/ports/tree/devel/gitaly/Makefile

I tried now doing it with:
GL_TUPLE= 
  gitlab-org:git:v${GITLAB_GIT_VERSION}:_build/_build/deps/git-v${GITLAB_GIT_VERSION_SHORT} 
\
gitlab-org:git:${GITLAB_GIT_MASTER_VERSION}:_build/_build/deps/git-master

But it does not work. If I do a make makesum, it uses only the last 
GL_TUPLE but not both.

Can please someone help me with that?

I need from the repository:
https://gitlab.com/gitlab-org/git

The two versions:
v2.50.0
23466173824c0a0f835c0d790c2f38156ae6284a

Thanks a lot for any hints!

Gruß
Matthias

-- 

"Programming today is a race between software engineers striving to
build bigger and better idiot-proof programs, and the universe trying to
produce bigger and better idiots. So far, the universe is winning." --
Rich Cook