Property ignorals cause BeanDeserializer to forget how to read from arrays (not copying _arrayDelegateDeserializer)

[gianm]

Describe the bug
When withIgnorableProperties is called on an already-resolved BeanDeserializer that is meant to read from an array, it uses a constructor that does not copy _arrayDelegateDeserializer, and so the deserializer "forgets" how to read from an array.

This can happen is in createContextual if any ignorals are set. When the deserializer returned by createContextual is then used on an array, it throws an error that it can't read from a START_ARRAY token.

Version information
I am using Jackson 2.10.5 but the problem seems to still exist in the latest master.

To Reproduce
I don't have a minimized test case handy, but hopefully the summary is enough to write one.

[cowtowncoder]

An actual test case will be needed, I hope to have time to eventually tackle this (since setup is non-trivial, with delegate array deserializer that typically gets added via @JsonCreator). It does sound like a bug, but fix needs to be verified.

Thank you for reporting the issue!

[cowtowncoder]

Although ideally really should have a regression tests, figured out that writing one is non-trivial, and that there are a few codepaths to cover; but on the other hand fix is easy enough to verify in other ways (made field final, observe where it is not passed -- cannot remain final due to one limitation but works for quick validation).
So, made the fix without ability to verify which is not optimal, for now.