defaultPendingComponent causes weird behavior in some cases

[TommysG]

Describe the bug

I have a weird bug. I have two routes that the first is the posts list and the second is /posts/$postId. $postId is the child of /posts route.

When going DIRECTLY within the URL for example /posts/4 and press the X button to close the sheet i see in the network tab that refetches data for this route, like the component remounts on close.

After hours of debugging i found out that defaultPendingComponent causes this...

Your Example Website or App

https://stackblitz.com/~/edit/github-844nb4?file=src%2Fmain.tsx&view=editor

Steps to Reproduce the Bug or Issue

1. go directly to /posts/1
2. open the network tab
3. tap the close button
4. watch that the componet is mounts again before closing

Expected behavior

I expected to work like when defaultPendingComponent is not declared and not re-mount my component before closing.

Screenshots or Videos

No response

Platform

• OS: macOS
• Browser: Chrome
• @tanstack/react-router: 1.15.15

Additional context

No response