@Override
      public void run() {
        Mycallback myDuringPackingImage =
            new Mycallback(GIITestHookType.DuringPackingImage, REGION_NAME);
        InitialImageOperation.setGIITestHook(myDuringPackingImage);
      }
P1, P2, P3 R does GII but wait at BeforeSavedReceivedRVV, so R's RVV=P3R0 P4, P5 R goes on to
save received RVV. R's new RVV=P5(3-6)R0

When image (which contains P4, P5) arrives, it should fill the special exception

This test will let the 2 operations happen before RIM, so the rvv will match between R and P
and no gii will happen. In this way, the chunk will not contain the missing entries.
geode-core/src/distributedTest/java/org/apache/geode/internal/cache/GIIDeltaDUnitTest.java