[FIX] No index=True needed when specifying unique constraint.
[FIX] No index=True needed when specifying unique constraint.

Endika/bank-statement-import,Antiun/bank-statement-import,open-synergy/bank-statement-import,hbrunn/bank-statement-import,lbelorgey/bank-statement-import,VitalPet/bank-statement-import,NL66278/bank-statement-import,acsone/bank-statement-import,StefanRijnhart/bank-statement-import,rschnapka/bank-statement-import