Missing config schema for custom_stacked field widget

I think this is strange behaviour as there is

field.widget.settings.*:
  type: custom_field_widget_base

custom_field_widget_base:
  type: mapping
  label: 'Custom field widget settings'
  mapping:
    label:
      type: boolean
      label: 'Show field label?'
    wrapper:
      type: string
      label: 'Wrapper'
    open:
      type: boolean
      label: 'Show open by default?'

that would normally should be picked up.

Added the schema for cutom_stacked in meanwhile. But not sure if this is the correct solution, but can't find the cause that creates this issue.

Hmm... yeah that is weird. Thanks for the patch, i'll just double check later today that i can reproduce the same warning and verify it fixes and I'll happily merge in. Appreciate the help :)

Weird that I can't even reproduce the error in config inspector but the patch isn't gonna break anything either way so merging it in and call it fixed. Thanks