SICSR-17663

[SICSR-17663] Instalments calculation errors with special premium
Product Line:	Cede
Component/s:	Accounting Technical Worksheet
Affects Version/s:	SICS 4.9.2
Fix Version/s:	SICS 20.1 SICS 4.9.2 SSP1 ITA2
**Issue Links: **	duplicates SICSR-17210
Customer:	Reale Mutua Assicurazioni