Bugfix/create entity bean unload (#1729)

* #1726 Add a testcase to reveal wrong behaviour of createEntityBean

* #1726 FIX: createEntityBean must not unload properties for "new" beans

(cherry picked from commit 270721bdb54373a83ef00b19a3c35da50f2a2bf5)

src/test/java/org/tests/model/basic/EDefaultProp.java

@@ -0,0 +1,48 @@
+package org.tests.model.basic;
+
+import javax.persistence.CascadeType;
+import javax.persistence.Entity;
+import javax.persistence.Id;
+import javax.persistence.OneToOne;
+
+@Entity
+public class EDefaultProp {
+
+  @Id
+  Integer id;
+
+  @OneToOne(cascade = CascadeType.ALL)
+  ESimple eSimple;
+
+  String name;
+
+  public EDefaultProp() {
+    eSimple = new ESimple();
+    eSimple.setName("Default prop eSimple");
+    name = "defaultName";
+  }
+
+  public Integer getId() {
+    return id;
+  }
+
+  public void setId(final Integer id) {
+    this.id = id;
+  }
+
+  public ESimple geteSimple() {
+    return eSimple;
+  }
+
+  public void seteSimple(final ESimple eSimple) {
+    this.eSimple = eSimple;
+  }
+
+  public String getName() {
+    return name;
+  }
+
+  public void setName(final String name) {
+    this.name = name;
+  }
+}