(bug): Date values becoming stale

[nikolovlazar]

Describe the bug

I noticed that Date values get stale between navigation (tanstack router) and their values lag behind, while their String representation is correct.

Steps to Reproduce the Bug or Issue

1. Reproduction: https://stackblitz.com/edit/github-99msu7h8?file=src%2Froutes%2Findex.tsx
2. Note the String Value and Date Value labels in the preview
3. Note the Date should be [date] label below the horizontal rule
4. The home page sets the date to 22nd March 2025, the About page sets it to 17th March, 2025
5. The default Date value is Fri Dec 31 1999. You can see that on the initial page load the String value gets returned correctly from the useState hook, while the Date value remains the default (1999)
6. Start navigating between Home and About
7. You'll see that the Date value becomes stale and gets out of sync (shows date for previous page), while the String value and Date should be are in sync

Expected behavior

I expect the Date value to remain in sync and not become stale

Screenshots or Videos

No response

Platform

• OS: macOS
• Browser: Brave
• Version: 1.75.180

Additional context

No response

[crutchcorn]

Dupe of #160

[nikolovlazar]

#164 seems like it fixes the issue! I tried it locally and the Date values aren't becoming stale.

CleanShot.2025-02-22.at.09.58.29.mp4