Solution : https://service.sap.com/sap/support/notes/1868222 (SAP Service marketplace login required)
Key words : 
schema version    = 2       mimetype          = text/xslt      class             = crm_svy_transformation       short description = generate bsp template, /ncrm_survey_suite -> survey repository -> cat server -> administer -> select rfc destination -> clear cache, software component   bbpcrm                        bbp / crm, cat server cache, select survey->generate, updated xslt file, bsp template, generate multiple surveys, select 'display versions', crm survey suite
Related Notes : 
       
| 1817152 | Migration to THTMLB framework for BSP scenarios |