fix(logs): replace initialData with placeholderData to fix stale log details

[waleedlatif1]

Summary

• Replaced initialData from list cache with placeholderData: keepPreviousData in useLogDetail
• initialData with initialDataUpdatedAt: 0 was seeding the detail cache with incomplete list data, requiring a hard refresh to see full log details
• Hover prefetch still works for instant detail rendering

Type of Change

• Bug fix

Testing

Tested manually

Checklist

• Code follows project style guidelines
• Self-reviewed my changes
• Tests added/updated and passing
• No new warnings introduced
• I confirm that I have read and agree to the terms outlined in the Contributor License Agreement (CLA)

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1 Skipped Deployment

Project	Deployment	Actions	Updated (UTC)
docs	Skipped		Feb 21, 2026 0:58am

[greptile-apps]

Greptile Summary

Replaced initialData with placeholderData: keepPreviousData in the useLogDetail hook to prevent seeding the detail cache with incomplete list data, fixing an issue where log details were stale and required a hard refresh.

• Removed the initialData function that populated detail cache from list query data
• Removed initialDataUpdatedAt: 0 that was causing all seeded data to appear stale immediately
• Switched to placeholderData: keepPreviousData to show previous data during refetch without polluting cache
• Removed unused useQueryClient import
• Hover prefetch functionality remains intact for instant detail rendering

Confidence Score: 5/5

• Safe to merge - this is a well-understood fix for a specific TanStack Query data caching issue
• The change correctly addresses the root cause by using placeholderData instead of initialData, which is the recommended pattern when you want to show previous data without affecting cache validity. The fix removes the problematic initialDataUpdatedAt: 0 pattern that was making all seeded data immediately stale.
• No files require special attention

Important Files Changed

Filename	Overview
apps/sim/hooks/queries/logs.ts	Replaced initialData with placeholderData: keepPreviousData in useLogDetail to fix stale data bug, removed unused useQueryClient import

_{Last reviewed commit: d115751}

[greptile-apps]

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[waleedlatif1]

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[waleedlatif1]

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