Iterator<RevCommit> logs = geogig.command(LogOp.class).call();
assertEquals(mainCommit, logs.next());
assertFalse(logs.hasNext());
// Verify that the transaction has the commit
logs = transaction1.command(LogOp.class).call();
assertEquals(transaction1Commit, logs.next());
assertEquals(mainCommit, logs.next());
assertFalse(logs.hasNext());
// start the second transaction