Fix JpaTarget entity graphs (#2198)

Signed-off-by: Avgustin Marinov <Avgustin.Marinov@bosch.com>

hawkbit-repository/hawkbit-repository-api/src/main/java/org/eclipse/hawkbit/repository/TargetManagement.java

@@ -366,7 +366,6 @@ public interface TargetManagement {
     @PreAuthorize(SpringEvalExpressions.HAS_AUTH_READ_TARGET)
     Optional<Target> getByControllerID(@NotEmpty String controllerId);
 
-
     /**
      * Gets a {@link Target} based a given controller id and includes the details specified by the details key.
      *

hawkbit-repository/hawkbit-repository-jpa/src/main/java/org/eclipse/hawkbit/repository/jpa/model/JpaTarget.java

@@ -89,10 +89,7 @@ import org.springframework.util.ObjectUtils;
                 @NamedAttributeNode("installedDistributionSet"),
                 @NamedAttributeNode("assignedDistributionSet") }),
         @NamedEntityGraph(name = "Target.targetType", attributeNodes = { @NamedAttributeNode("targetType") }),
-        @NamedEntityGraph(name = "Target.installedDistributionSet", attributeNodes = { @NamedAttributeNode("installedDistributionSet") },
-                subgraphs = { @NamedSubgraph(
-                        name = "installedDistributionSet.optLockRevision",
-                        attributeNodes = @NamedAttributeNode("optLockRevision")) }),
+        @NamedEntityGraph(name = "Target.installedDistributionSet", attributeNodes = { @NamedAttributeNode("installedDistributionSet") }),
         @NamedEntityGraph(name = "Target.assignedDistributionSet", attributeNodes = { @NamedAttributeNode("assignedDistributionSet") }),
         @NamedEntityGraph(name = "Target.autoConfirmationStatus", attributeNodes = { @NamedAttributeNode("autoConfirmationStatus") }),
         @NamedEntityGraph(name = "Target.tags", attributeNodes = { @NamedAttributeNode("tags") }),