Solution : https://service.sap.com/sap/support/notes/1444367 (SAP Service marketplace login required)
Key words : 
terms dbm document flow cl_binary_relation read_links_of_objects reason, symptom reading problems, document flow, prerequisites side effect, note 1356172, correction, implemented
Related Notes : 
       
| 1356172 | OBL: New buffering for reading links |