core.date_format.invalid.yml

langcode: en
status: true
dependencies:
  config:
    # Depend on the valid date format in order to ensure it is imported first,
    # which means we can ensure it was rolled back when this date format raises
    # a validation error.
    - core.date_format.valid
id: invalid
# Null isn't a valid value for the label, so this should raise a validation
# error.
label: null
locked: false
pattern: 'j F Y'