/series/add: fix changing order of image after page's reload.

Correction for 27d1204 commit.

After feedback from: Pavel Finkelshtein <pavel.finkelshtein@gmail.com>

Author: php-coder

src/main/java/ru/mystamps/web/entity/Series.java

@@ -148,6 +148,7 @@ public class Series {
 
 	@OneToMany(fetch = FetchType.EAGER)
 	@JoinTable(inverseJoinColumns = @JoinColumn(name = "image_id"))
+	@OrderBy
 	private Set<Image> images;
 
 	@Column(length = COMMENT_LENGTH)