Issue setting initialValue within sections

[mbrodt]

Hi, and thanks for the great packages - they've made it much easier to build a great Sanity Studio experience 🙌

I've ran into an issue using the defineSection helper, where the initialValue of a field is not respected. It's probably easiest to explain with a video:

Screen.Recording.2024-06-05.at.11.54.44.mov

Here I'm using a "media" schema type I've defined, that sets some default values. They work fine when added directly to the document (using the defineField Sanity helper), but when they're using the same helper within a section, it doesn't set the default values.

Any idea what might be causing this or what I can do to fix it? Appreciate any help 🙌