Fix bug which allowed creation of hosts with superordinate domains in pending delete state.

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Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=154716883

java/google/registry/rde/imports/RdeHostLinkAction.java

@@ -28,6 +28,7 @@ import com.googlecode.objectify.VoidWork;
 import google.registry.config.RegistryConfig.Config;
 import google.registry.mapreduce.MapreduceRunner;
 import google.registry.model.domain.DomainResource;
+import google.registry.model.eppcommon.StatusValue;
 import google.registry.model.host.HostResource;
 import google.registry.request.Action;
 import google.registry.request.Parameter;
@@ -107,6 +108,14 @@ public class RdeHostLinkAction implements Runnable {
           logger.infofmt("Host %s is out of zone", xjcHost.getName());
           return;
         }
+        if (superordinateDomain.get().getStatusValues().contains(StatusValue.PENDING_DELETE)) {
+          getContext()
+              .incrementCounter(
+                  "post-import hosts with superordinate domains in pending delete");
+          logger.infofmt(
+              "Host %s has a superordinate domain in pending delete", xjcHost.getName());
+          return;
+        }
         // at this point, the host is definitely in zone and should be linked
         getContext().incrementCounter("post-import hosts in zone");
         final Key<DomainResource> superordinateDomainKey = Key.create(superordinateDomain.get());