ReadCommitted - commited Cache.remove is not visible to other transactions

See the attached unit test: i added the testVisibilityOfCommittedDataRemove method to your org.infinispan.api.mvcc.read_committed.ReadCommittedLockTest unit test class.
This test is successful in infinispan-4.2.1 but not in infinispan-5.0.0.

What happens:
1. transaction1(tx1): cache.put("k", "v")
2. tx2: cache.remove("k")
3. tx2: commit
4. tx1: "v".equals(cache.get("k"))

What should happen:
...
4. tx1: cache.get("k") == null