---

# Doing `|from_yaml` when the extension contains nothing yields an empty string ("").
# We need to ensure it's a dictionary or `|combine` (when building `matrix_ma1sd_configuration`) will fail later.
matrix_ma1sd_configuration_extension: "{{ matrix_ma1sd_configuration_extension_yaml|from_yaml if matrix_ma1sd_configuration_extension_yaml|from_yaml else {} }}"