Dagger fails to load git config when ~/.gitconfig contains a multi-line value

Dagger fails to load git config when ~/.gitconfig contains a multi-line value: a task in MiMo-V2.6-RL-harbor-code: MiMo-V2.6-RL Code (Harbor) (Harbor dataset). I have a few entries in my ~/.gitconfig whose values span multiple lines (e.g. an insteadOf rewrite with an embedded newline, plus a…

The task

I have a few entries in my `~/.gitconfig` whose values span multiple lines (e.g. an `insteadOf` rewrite with an embedded newline, plus a signing key block). Standard `git` tooling handles these fine, but as soon as Dagger needs to read the git config (for example when resolving a private repo via an `insteadOf`…

Part of FineEnvs/MiMo-V2.6-RL-harbor-code.