Ensure that FlushCacheIndex doesn't permafail
Ensure that FlushCacheIndex doesn't permafail

jorik041/Akavache,MathieuDSTP/MyAkavache,shana/Akavache,mms-/Akavache,christer155/Akavache,PureWeen/Akavache,shana/Akavache,martijn00/Akavache,kmjonmastro/Akavache,ghuntley/AkavacheSandpit,gimsum/Akavache,MarcMagnin/Akavache,bbqchickenrobot/Akavache,Loke155/Akavache,jcomtois/Akavache,akavache/Akavache,shiftkey/Akavache