BeanDiffer accesses ignored properties before they get dropped

[SQiShER]

This should not happen because some methods are marked as ignored because they perform heavy calculations or depend on a certain object state. The only reason why ignored accessors are not discarded right away during introspection is to be able to add them as ignored nodes to the result tree.

[adylbek-akmatov]

this bug is in 0.10 version as well. 0.9 version does not have this bug.