By Conor Humphries IRPIN, Ukraine (Reuters) – For years a vocal minority at Saint Nicholas’ parish in the middle-class Kyiv commuter town of Irpin resisted calls to split from their spiritual fathers in Moscow. A millennium of sacred ties between Russia and Ukraine, they argued, should be above politics. But after three weeks of Russian military occupation that left the church building pockmarked with shrapnel, the parish van pulverised by a mortar and a bullet hole through the eye of an icon, parishioners decided that enough was enough. By a margin of 4 to 1, they voted in May to join a major…