Set all fetch types to LAZY.

Change-Id: I0b0c96fe177260ece2a68381c71c4959c3a82dcb
diff --git a/src/main/java/eu/mulk/mulkcms2/benki/generic/Post.java b/src/main/java/eu/mulk/mulkcms2/benki/generic/Post.java
index bfa02d2..6839f99 100644
--- a/src/main/java/eu/mulk/mulkcms2/benki/generic/Post.java
+++ b/src/main/java/eu/mulk/mulkcms2/benki/generic/Post.java
@@ -28,7 +28,7 @@
   @Column(name = "date", nullable = true)
   public OffsetDateTime date;
 
-  @ManyToOne
+  @ManyToOne(fetch = FetchType.LAZY)
   @JoinColumn(name = "owner", referencedColumnName = "id")
   public User owner;