No tracking information for current branch

General Usage
2

not exactly, but i think you’re missing the upstream (see git branch --set-upstream) information for fetch/merge.
I have (for a similar setup, local package/github as remote) an additional line

[remote "origin"]
        url = https://github.com/lobingera/L1Dummy.git
        fetch = +refs/heads/*:refs/remotes/origin/*
        pushurl = git@github.com:lobingera/L1Dummy.git
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