ISPN-2688 BaseDistributionInterceptor and TxDistributionInterceptor do not detect properly if the key needs to be fetched remotely

Fixes https://issues.jboss.org/browse/ISPN-2688 and https://issues.jboss.org/browse/ISPN-2839

Does not fix the non-tx case of ISPN-2688. Will be addressed a separate issue.

Please integrate in master and 5.2.x (t_2688_52).