Solution : https://service.sap.com/sap/support/notes/1140610 (SAP Service marketplace login required)
Key words :
button toolbarbutton linktoaction toolbarlinktoaction buttonchoice [, active delta rendering, attached correction instructions, repeatselectedaction = false] toolbarbuttonchoice [, repeatselectedaction = false], unnecessarily rendered, program error, note 1021981, triggering, prerequisites
Related Notes :
| 1148961 | POWL: Delta rendering optimization for buttons & links |