Duplicated in exporting CSV

[rubybui]

Describe the Bug

Hi, we needs to export a few hundred rows of an order tables with depth and multiple relationship fields. Result tends to have multiple lines of table header as well as duplication of the last page.

there could be multiple types of bugs over here, as there is the type of appended header in the middle of the file and duplicate rows after this header.

and there is a type that only show duplicated rows with no header inserted

Link to the code that reproduces this issue

https://github.com/payloadcms/payload/blob/main/packages/plugin-import-export/src/export/createExport.ts

Reproduction Steps

Have a table with relationships.
add import/export plugin
seed tables
create exports

Which area(s) are affected? (Select all that apply)

plugin: other

Environment Info

Payload: 3.29.0
next 15.2.0
node: 22.14.0

[DanRibbens]

I'm having trouble reproducing this issue.

I've tried both testing with the Download feature and file upload creation and there isn't a way I can get the headers to duplicate.

Can you upload a sample CSV file that shows this problem or make a screen recording that can demonstrate the issue?

[rubybui]

Hi Dan, due to the nature of the csv is personal information, I could not directly send the csv here.
I took some screenshots:
Order Table

Payment Table

after sorted

Not all items are duplicated

Payment Table (don't have duplicated table header), but have duplicated rows