private boolean isThisRegionBeingClosedOrDestroyed(RegionEntryContext context) {
    return context instanceof InternalRegion
        && ((InternalRegion) context).isThisRegionBeingClosedOrDestroyed();
  }
To fix bug 49901 if v is a GatewaySenderEventImpl then make a heap copy of it if it is offheap.

@return the value to provide to the gii request; null if no value should be provided.
geode-core/src/main/java/org/apache/geode/internal/cache/entries/AbstractRegionEntry.java