Fixed controlled values for Stripe and Mailgun inputs

[9larsons]

What changed

• Default missing Stripe Direct keys to empty strings.
• Default missing Mailgun domain and API key values to empty strings.

Why

The settings API can return undefined or null for unset values. Passing those values to the text fields made the underlying inputs uncontrolled on their first render, then controlled after the acceptance tests populated them. This removes all three controlled-input diagnostics found in the current full Admin acceptance-test log.

Testing

• pnpm nx run @tryghost/admin:test:acceptance -- src/settings/membership/stripe.acceptance.test.tsx src/settings/email/mailgun.acceptance.test.tsx
• pnpm nx run @tryghost/admin-x-settings:lint
• pnpm nx run @tryghost/admin-x-settings:test:unit

[coderabbitai]

No actionable comments were generated in the recent review. 🎉

ℹ️ Recent review info

⚙️ Run configuration

Configuration used: Path: .coderabbit.yaml

Review profile: CHILL

Plan: Pro

Run ID: f4e610a2-5c64-43d9-84b1-8bf41c26f3c2

📥 Commits

Reviewing files that changed from the base of the PR and between 6682543 and 0947024.

📒 Files selected for processing (2)

• apps/admin-x-settings/src/components/settings/email/mailgun.tsx
• apps/admin-x-settings/src/components/settings/membership/stripe/stripe-connect-modal.tsx

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Walkthrough

Updated Mailgun domain and private API key fields, along with Stripe Direct connection key fields, to pass empty strings instead of nullish values to controlled TextField components.

🚥 Pre-merge checks | ✅ 4

✅ Passed checks (4 passed)

Check name	Status	Explanation
Title check	✅ Passed	The title clearly summarizes the main change: keeping Stripe and Mailgun inputs controlled.
Description check	✅ Passed	The description matches the changeset and explains the empty-string defaults, motivation, and testing.
Linked Issues check	✅ Passed	Check skipped because no linked issues were found for this pull request.
Out of Scope Changes check	✅ Passed	Check skipped because no linked issues were found for this pull request.

✨ Finishing Touches

📝 Generate docstrings

• Create stacked PR
• Commit on current branch

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Commit unit tests in branch codex/fix-controlled-settings-inputs

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[nx-cloud]

🤖 Nx Cloud AI Fix

Ensure the fix-ci command is configured to always run in your CI pipeline to get automatic fixes in future runs. For more information, please see https://nx.dev/ci/features/self-healing-ci

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View your CI Pipeline Execution ↗ for commit 0947024

Command	Status	Duration	Result
nx run @tryghost/admin:test:acceptance	✅ Succeeded	4m 18s	View ↗
nx run @tryghost/admin-x-settings:test:acceptance	✅ Succeeded	3m 30s	View ↗
nx run-many -t test:unit -p @tryghost/admin-x-s...	✅ Succeeded	2m 47s	View ↗
nx run ghost-monorepo:lint:boundaries	✅ Succeeded	22s	View ↗
nx run-many -t lint -p @tryghost/admin-x-settin...	✅ Succeeded	1m 10s	View ↗
nx run @tryghost/admin:build	✅ Succeeded	38s	View ↗
nx run-many --target=build --projects=tag:publi...	✅ Succeeded	<1s	View ↗

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☁️ Nx Cloud last updated this comment at 2026-07-16 14:27:56 UTC