Hi there @sdispater ,
I've been improving the coverage on the Google OSS-Fuzz integration for Tomlkit to cover the dumps logic, see #PR10046 https://github.com/ossf/fuzz-introspector .
There's some issues with the updates to the fuzzer. Currently the only people who can see the stack traces for the errors are people listed in this file https://github.com/google/oss-fuzz/blob/master/projects/tomlkit/project.yaml . Would you mind me adding my e-mail address to this file? I need a maintainers permissions to be added to it to debug what's wrong.