Fixed major bug when cloning an AVL where the bloom filter was not

copied properly (because the sutructure copy via assignation does not
work for structures with a variable size)

src/obiavl.h

@@ -143,12 +143,6 @@ typedef struct OBIDMS_avl {
 	OBIDMS_avl_data_p			data;						/**< A pointer to the structure containing the data
 													 	 	 *   that the AVL tree references.
 													 	 	 */
-	DIR*						directory;					/**< A directory entry usable to
-										 	 	 	 	 	 *    refer and scan the AVL tree directory.
-										 	 	 	 	 	 */
-	int							dir_fd;						/**< The file descriptor of the directory entry
-													 	 	 *    usable to refer and scan the AVL tree directory.
-													 	 	 */
 	int							avl_fd;						/**< The file descriptor of the file containing the AVL tree.
 													 	 	 */
 } OBIDMS_avl_t, *OBIDMS_avl_p;
@@ -168,6 +162,8 @@ typedef struct OBIDMS_avl_group {
 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 */
 	bool			writable;								/**< Indicates whether the AVL group is read-only or not.
 															 */
+	DIR*			directory;								/**< A directory entry usable to refer and scan the AVL group directory.
+										 	 	 	 	 	 */
 	size_t			counter;								/**< Indicates by how many threads/programs (TODO) the AVL group is used.
 													 	 	 */
 } OBIDMS_avl_group_t, *OBIDMS_avl_group_p;