By Alexandra Schwarz-Goerlich BERLIN (Reuters) -Austrian energy group OMV will seek a review of the decisions of former CEO Rainer Seele, whose investments in Russia and the suspended Nord Stream 2 gas pipeline were in hindsight a mistake, its supervisory board chair said on Friday. Seele’s focus on low-cost oil and gas fields in Russia from 2015 helped to make OMV one of the best cash flow generators in the sector. “Looking back, we have to conclude that the investments made in Russia after 2015 were based on too much trust in Russia and Russia’s role in the international community,” chairman…