(Bloomberg) -- A turbulent week is over for the ruble, but the widening policy divide it revealed within Russian officialdom is here to stay.Most Read from BloombergChina Evergrande Group Files Chapter 15 Bankruptcy in New York‘Poor Man’s Cocaine’ Costing $3 a Pill Threatens to ProliferateChina’s Hidden Financial Dangers Erupt With Shadow Bank CrisisUS Stocks Erase Losses as Blue Chips Edge Higher: Markets WrapGoldman Plans Hiring Spree to Fix Lapses After Increased Fed ScrutinyAs the currency n