fix: render all top-level segment rules in the UI instead

[Zaimwa9]

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• I have filled in the "Changes" section below.
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Changes

Closes #7254

• Removed the hardcoded *rules[0] to properly deal with multiple top level rules

⚠️ Backend modification were overkill and might have required migrating all existing rules with multiple top level rules

How did you test this code?

1. Create a segment with multiple top-level rules

  curl -s -X POST http://localhost:8000/api/v1/projects/1/segments/ \
    -H "Authorization: Token <YOUR_API_TOKEN>" \
    -H "Content-Type: application/json" \
    -d '{
    "name": "Multi-rule test segment",
    "description": "Testing multiple top-level rules render in the UI",
    "project": 1,
    "rules": [
      {
        "type": "ALL",
        "conditions": [],
        "rules": [
          {
            "type": "ANY",
            "conditions": [
              { "operator": "EQUAL", "property": "country", "value": "GB" },
              { "operator": "EQUAL", "property": "country", "value": "FR" }
            ],
            "rules": []
          }
        ]
      },
      {
        "type": "ALL",
        "conditions": [],
        "rules": [
          {
            "type": "NONE",
            "conditions": [
              { "operator": "EQUAL", "property": "is_bot", "value": "true" }
            ],
            "rules": []
          },
          {
            "type": "ANY",
            "conditions": [
              { "operator": "GREATER_THAN", "property": "age", "value": "18" }
            ],
            "rules": []
          }
        ]
      }
    ]
  }'

2. Verify in the UI

Open the segment in the dashboard. You should see all 3 rule cards:

• "Any of the following" — country = GB, country = FR

• "And none of the following" — is_bot = true

• "And any of the following" — age > 18

  3. Before the fix

Only the first rule card (country GB/FR) was visible. The other two were silently hidden

Before fix

After fix

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Project	Deployment	Actions	Updated (UTC)
flagsmith-frontend-preview	Ready	Preview, Comment	Apr 24, 2026 4:54pm
flagsmith-frontend-staging	Ready	Preview, Comment	Apr 24, 2026 4:54pm

1 Skipped Deployment

Project	Deployment	Actions	Updated (UTC)
docs	Ignored		Apr 24, 2026 4:54pm

[github-actions]

Docker builds report

Image	Build Status	Security report
ghcr.io/flagsmith/flagsmith-api-test:pr-7342	Finished ✅	Skipped
ghcr.io/flagsmith/flagsmith-e2e:pr-7342	Finished ✅	Skipped
ghcr.io/flagsmith/flagsmith-api:pr-7342	Finished ✅	Results ✅
ghcr.io/flagsmith/flagsmith:pr-7342	Finished ✅	Results ✅
ghcr.io/flagsmith/flagsmith-private-cloud:pr-7342	Finished ✅	Results ✅
ghcr.io/flagsmith/flagsmith-frontend:pr-7342	Finished ✅	Results ✅

[github-actions]

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

 11 passed

Details

 11 tests across 8 suites
 24.4 seconds
 ad79c58
 🔄 Run: #16331 (attempt 1)

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

 11 passed

Details

 11 tests across 8 suites
 11.4 seconds
 ad79c58
 🔄 Run: #16331 (attempt 1)

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

 17 passed

Details

 17 tests across 14 suites
 53.5 seconds
 ad79c58
 🔄 Run: #16331 (attempt 1)

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

 17 passed

Details

 17 tests across 14 suites
 58.9 seconds
 ad79c58
 🔄 Run: #16331 (attempt 1)

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

 11 passed

Details

 11 tests across 8 suites
 5.5 seconds
 ad79c58
 🔄 Run: #16456 (attempt 1)

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

 11 passed

Details

 11 tests across 8 suites
 50.8 seconds
 ad79c58
 🔄 Run: #16456 (attempt 1)

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

 1 passed

Details

 1 test across 1 suite
 43.8 seconds
 ad79c58
 🔄 Run: #16456 (attempt 1)

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

 2 passed

Details

 2 tests across 2 suites
 1 minute, 9 seconds
 ad79c58
 🔄 Run: #16456 (attempt 1)

[github-actions]

Visual Regression

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[talissoncosta]

Tested locally with curl ✅

Thanks for handling that @Zaimwa9 !!! Good Job!