Solution : https://service.sap.com/sap/support/notes/641776 (SAP Service marketplace login required)
Key words : 
attached source code corrections, terms versioning reason, change number ready, change number field, change number, recipe workbench, system displays, dialog box, recipe type, longer visible
Related Notes : 
       
| 634296 | Mandatory backup for change of change number or key date | 
| 631420 | RMGMT210: Corrections in Support Package 04 |