Spring Resolve default value when argument converts to null

Resolves #29550 I just added a condition that checks if the argument is converted to null after being resolved a first time. If it does and it has a default value, the default value is resolved.

Comment From: quaff

You should add a test case.

Comment From: Nheyll

You should add a test case.

Just pushed my test case thanks for the advice

Comment From: izeye

https://github.com/spring-projects/spring-framework/issues/29550 that this PR seems to try to resolve has been resolved in b98c1ec36a2a00ff9cc3a7fa5c9fd0e776a97225 already.

Comment From: rstoyanchev

Indeed, #29950 has been addressed already in M1 and this is a duplicate.