ISPN-4559 Replace fails with cache loader

https://issues.jboss.org/browse/ISPN-4559
https://issues.jboss.org/browse/ISPN-4649
FYI: https://github.com/jsr107/jsr107tck/blob/master/cache-tests/src/test/java/org/jsr107/tck/integration/CacheLoaderWithoutReadThroughTest.java#L456