Custom data extracts are not passed through during project creation

[manjitapandey]

Describe the bug
The custom data is not visible on map step 4 of project creation. No API is called for loading custom data extracts.

To Reproduce
Steps to reproduce the behavior:

1. Go to create project step 4
2. Upload custom data extracts
3. See error

Expected behavior
custom data extract to be visible on map

Screenshots

[spwoodcock]

Is the geojson valid? Perhaps it threw an error silently.

I just uploaded a custom data extract:

Related #1145 (uploading flatgeobuf doesn't work properly, but geojson should)

[spwoodcock]

The bbox
kathmandu.txt

The extract
kathmandu_extract.txt

They are txt file, as geojson is not supported by github.

[spwoodcock]

Oops accidentally deleted my previous comment.

So data extracts are not getting passed through to the generate stage correctly - only a false value gets passed:

Two things to investigate:

• Are the geojson extracts correctly loading on the split-tasks stage? Is there adequate error handling here if the geojson is not valid?
• Why the geojson is not passed to the generate endpoint, but instead a boolean value is.