2 Do not affect user-assigned choice value by another choice.
4 Handling of state flags for choices is complecated. In old days,
5 the defconfig result of a choice could be affected by another choice
6 if those choices interact by 'depends on', 'select', etc.
8 Related Linux commit: fbe98bb9ed3dae23e320c6b113e35f129538d14a
13 assert conf.defconfig('defconfig') == 0
14 assert conf.config_contains('expected_config')