Handling of unicode characters when importing SBGN
When importing SBGN with characters such as greek alpha, MINERVA converts these into a question mark character. ![image](/uploads/017bf209bcecac72d25119a7888ea56e/image.png) [F001-glycolysis-alt-SBGNv02.sbgn](/uploads/7268d23d2f7f7425cf5b2a55b7f29c77/F001-glycolysis-alt-SBGNv02.sbgn)
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