BERLIN — Germany’s foreign minister called Wednesday on Iran to reverse a death sentence handed down to Jamshid Sharmahd, an Iranian-German dual citizen and opposition figure accused of masterminding deadly attacks. Foreign Minister Annalena Baerbock called the verdict “completely unacceptable.” “At no point did Jamshid Sharmahd have even the beginnings of a fair trial,” she wrote on Twitter. “We call …