The Supreme Court of Russia’s republic of Bashkortostan has rejected activist Fayil Alsynov’s appeal against a prison sentence on charges of “inciting interethnic hatred,” his lawyer Ilnur Suyundukov announced Thursday. Alsynov, a prominent indigenous rights defender from Turkic-majority Bashkortostan, was sentenced to four years in a penal colony in January on charges linked to his role in protests against illegal gold-mining works in the republic’s southeast. The republic’s highest court upheld the earlier verdict by the Baymaksky District Court and also ruled to ban the activist from admini…