Fix repository recognition for SSH mapped configurations

[williammartin]

Fixes #45 and Fixes #337

Description

gh stack submit fails when the origin remote uses a custom SSH host alias. For example, git@github.com-work:org/repo where ~/.ssh/config maps github.com-work to github.com.

gh-stack uses repository.Current() from go-gh to work out which repo it is in. That function does expand SSH aliases with ssh -G. However, it then filtered remotes on the host from before the expansion. So github.com-work never matched a known host, and every command needing a GitHub client failed with:

✗ failed to create GitHub client: determining repository: unable to determine current repository, none of the git remotes configured for this repository point to a known GitHub host

This was fixed in cli/go-gh#274 and released in go-gh v2.16.2. This PR bumps the dependency.

How did you test this change?

I built two binaries from the same commit. The only difference was the go-gh version.

I then ran both against a private repo with an origin of git@github.com-work:williammartin/gh-stack-ssh-alias-demo.git. Each run used an isolated SSH config where github.com-work resolved to github.com.

The two runs used the same terminal, commands, and repo state. Each one had a two-branch stack (layer-1 and layer-2) on top of main. I ran gh stack submit --auto in each.

Before (go-gh v2.16.1), I saw the error above:

After (go-gh at the commit tagged v2.16.2), I saw two draft PRs and a stack created:

The after recording shows the replace => v2.16.2-0.20261009094949-aadf36735579 because I recorded it before the tag existed. The v2.16.2 tag points at that same commit, aadf367.

Authorship and follow-up

Who wrote this:

• A human wrote it.
• An agent wrote it under close human direction.
• An agent wrote it independently, and no human has guided the implementation beyond the initial prompt.

Who answers review comments:

• @williammartin will read and reply directly.
• An agent will draft replies and @williammartin will read them before they are posted.
• Nobody has explicitly committed to replying.

[Copilot]

🟢 Approval recommended

The valid dependency release contains the intended SSH alias fix, and the module files are consistent.

0 open findings

What changed in this PR

Updates go-gh to fix repository detection for remotes using SSH host aliases.

Changes:

• Bumps go-gh from v2.16.1 to v2.16.2.
• Updates module checksums accordingly.

File	Description
go.mod	Updates the direct go-gh dependency.
go.sum	Records matching v2.16.2 checksums.

🧠 Review effort: Balanced

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[Copilot]

🟢 Approval recommended

The dependency release contains the intended fix and the regression test exercises it directly; only the PR description needs a minor scope correction.

1 open finding

• Update PR description to reflect added integration test · New

🧠 Review effort: Balanced

[ktravers]

Appreciate the test coverage, looks great 🚀