"WARN calling IsSet with unsupported type "invalid" (<nil>) will always return false" with minimal hugo.toml

[mem-]

Past Issues Searched

• I have searched open and closed issues to make sure that the bug has not yet been reported

Issue is a Bug Report

• This is a bug report and not a feature request, nor asking for support

Describe the bug

With a minimal hugo.toml (like when starting fresh 'hugo new site my-lotus-site') the following warning is printed when starting 'hugo server'

WARN  calling IsSet with unsupported type "invalid" () will always return false

Expected behavior

The problem is soleved by add the following two empty section headlines in the config:
[params.social]
[params.flexsearch]

No actual settings has to be added. I guess it's a bug in the config parser.

Screenshots

No response

Environment

- OS: Debian 10.13
- Golang: go1.24.0 linux/amd64
- Hugo version: 0.140.2-aae02ca612a02e085c08366a9c9279f4abb39d94+extended linux/amd64 BuildDate=2024-12-30T15:01:53Z VendorInfo=gohugoio
- Lotus Docs: github.com/colinwilson/lotusdocs v0.2.0 // indirect
- Browser: Google Chrome
- Browser Version:

[alewis001]

+1