[aur-general] Ho to update .SRCINFO without creating a tarball?

Hello, I'm doing my first steps with AUR 4.0 and I'm asked to commit both, PKGBUILD and .SRCINFO. .SRCINFO is automatically created with "makepkg --source", but there is no need for a tarball when pushing to GIT. So what I think that would be useful is something like "makepkg --upgradesrcinfo" or something like that. I something like this already available? Manuel