Resolve "accessing comment"

eager loaded compartment caused issues when loading info about comment (it took a lot of time load this data in some cases)

Closes #277 (closed)

model/src/main/java/lcsb/mapviewer/model/map/species/Element.java

@@ -127,7 +127,7 @@ public abstract class Element implements BioEntity, Serializable {
 	 * {@link Compartment} where element is located. When element lies outside of
 	 * every compartment then null value is assigned.
 	 */
-	@ManyToOne
+    @ManyToOne(fetch = FetchType.LAZY)
 	@Cascade({ CascadeType.SAVE_UPDATE })
 	private Compartment											compartment;