No one knew why. No one could agree on which config was right.
This is the price of inconsistent Git setups across environments. Development, staging, production—each one a slightly different puzzle. When Git behavior changes between machines, merges fail, histories conflict, and CI runs choke on mismatched settings.
Git environment-wide uniform access is the cure. It means every developer, service, and automation step interacts with Git the same way, with the same rules, credentials, and permissions. No silent differences. No hidden overrides.
Uniform access begins with centralizing .gitconfig and credential management. Host them in a secure, versioned store. Automate the distribution through scripts or provisioning tools so every environment pulls identical configurations and access tokens.
Lock down authentication. Use SSH keys or personal access tokens stored and rotated by a secrets manager. Map each identity to clear permissions. Avoid mixed authentication modes that drift over time.