The tests introduced in this commit reveal the following issues in our
Bean Override support.
- If a FactoryBean signals it does not manage a singleton, the Bean
Override support silently replaces it with a singleton.
- An attempt to override a prototype-scoped bean or a bean configured
with a custom scope results in one of the following.
- If the bean type of the original bean definition is a concrete
class, an attempt will be made to invoke the default constructor
which will either succeed with undesirable results or fail with an
exception if the bean type does not have a default constructor.
- If the bean type of the original bean definition is an interface or
a FactoryBean that claims to create a bean of a certain interface
type, an attempt will be made to instantiate the interface which
will always fail with a BeanCreationException.
9c746905bc