fix: experiment form UX fixes

[Zaimwa9]

• I have read the Contributing Guide.
• I have added information to docs/ if required so people know about the feature.
• I have filled in the "Changes" section below.
• I have filled in the "How did you test this code" section below.

Changes

Small experiment UX fixes:

• Refetch multivariate flags when landing on the experiment setup step, so flags made multivariate in another tab appear without a full refresh.
• Keep the typed event name when the metric event combobox loses focus. The reactstrap modal wrapper steals focus on any click inside it, which made react-select discard the draft; the value is now committed on blur.
• Winning variation stat now renders in the default text colour, matching the other result cards.
• Removed a redundant ms-lg-2 on the PageTitle CTA that indented the button when it wraps below the description (e.g. Segments page).

How did you test this code?

Manually.

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Project	Deployment	Actions	Updated (UTC)
flagsmith-frontend-preview	Ready	Preview	Aug 11, 2026 8:34am
flagsmith-frontend-staging	Ready	Preview	Aug 11, 2026 8:34am

1 Skipped Deployment

Project	Deployment	Actions	Updated (UTC)
docs	Ignored	Preview	Aug 11, 2026 8:34am

[coderabbitai]

No actionable comments were generated in the recent review. 🎉

ℹ️ Recent review info

⚙️ Run configuration

Configuration used: Organization UI

Review profile: ASSERTIVE

Plan: Pro Plus

Run ID: 4bf969dd-57a0-4391-bccb-fd3ec73f7721

📥 Commits

Reviewing files that changed from the base of the PR and between 78ffcff and 783fb60.

📒 Files selected for processing (1)

• frontend/web/components/experiments/EventNameSelect/EventNameSelect.tsx

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📝 Walkthrough

Walkthrough

The changes control typed input in EventNameSelect, commit non-empty input on blur, and refresh the feature-list query on mount or argument changes. The changes also remove a responsive CTA margin and render the winning variation without the conditional success wrapper.

Estimated code review effort: 2 (Simple) | ~10 minutes

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[github-actions]

Docker builds report

Image	Build Status	Security report
ghcr.io/flagsmith/flagsmith-api-test:pr-8251	Finished ✅	Skipped
ghcr.io/flagsmith/flagsmith-e2e:pr-8251	Finished ✅	Skipped
ghcr.io/flagsmith/flagsmith-api:pr-8251	Finished ✅	Results ✅
ghcr.io/flagsmith/flagsmith:pr-8251	Finished ✅	Results ✅
ghcr.io/flagsmith/flagsmith-private-cloud:pr-8251	Finished ✅	Results ✅
ghcr.io/flagsmith/flagsmith-frontend:pr-8251	Finished ✅	Results ✅

[coderabbitai]

Actionable comments posted: 1

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ℹ️ Review info

⚙️ Run configuration

Configuration used: Organization UI

Review profile: ASSERTIVE

Plan: Pro Plus

Run ID: 99e25f14-b941-426a-95b3-98a8837b72aa

📥 Commits

Reviewing files that changed from the base of the PR and between eeac6b3 and 78ffcff.

📒 Files selected for processing (4)

• frontend/web/components/PageTitle.tsx
• frontend/web/components/experiments/EventNameSelect/EventNameSelect.tsx
• frontend/web/components/experiments/results/ExperimentSummaryScorecard.tsx
• frontend/web/components/experiments/steps/SetupStep.tsx

[github-actions]

✅ private-cloud · depot-ubuntu-latest-arm-16 — run #19200 (attempt 1)

Playwright Test Results (private-cloud - depot-ubuntu-latest-arm-16)

 3 passed

Details

 3 tests across 3 suites
 38.5 seconds
 783fb60
 🔄 Run: #19200 (attempt 1)

🗂️ Previous results

✅ oss · depot-ubuntu-latest-arm-16 — run #19200 (attempt 1)

Playwright Test Results (oss - depot-ubuntu-latest-arm-16)

 1 passed

Details

 1 test across 1 suite
 45.7 seconds
 783fb60
 🔄 Run: #19200 (attempt 1)

✅ private-cloud · depot-ubuntu-latest-16 — run #19200 (attempt 1)

Playwright Test Results (private-cloud - depot-ubuntu-latest-16)

 3 passed

Details

 3 tests across 3 suites
 32.7 seconds
 783fb60
 🔄 Run: #19200 (attempt 1)

✅ oss · depot-ubuntu-latest-16 — run #19200 (attempt 1)

Playwright Test Results (oss - depot-ubuntu-latest-16)

 1 passed

Details

 1 test across 1 suite
 39.9 seconds
 783fb60
 🔄 Run: #19200 (attempt 1)

✅ private-cloud · depot-ubuntu-latest-arm-16 — run #19158 (attempt 1)

Playwright Test Results (private-cloud - depot-ubuntu-latest-arm-16)

 3 passed

Details

 3 tests across 3 suites
 38.1 seconds
 78ffcff
 🔄 Run: #19158 (attempt 1)

✅ oss · depot-ubuntu-latest-arm-16 — run #19158 (attempt 1)

Playwright Test Results (oss - depot-ubuntu-latest-arm-16)

 1 passed

Details

 1 test across 1 suite
 40.2 seconds
 78ffcff
 🔄 Run: #19158 (attempt 1)

✅ oss · depot-ubuntu-latest-16 — run #19158 (attempt 1)

Playwright Test Results (oss - depot-ubuntu-latest-16)

 1 passed

Details

 1 test across 1 suite
 37.1 seconds
 78ffcff
 🔄 Run: #19158 (attempt 1)

[github-actions]

Visual Regression

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[talissoncosta]

Looks good!