Base: Units: return std::string

src/Base/UnitsSchemaInternal.cpp

@@ -630,7 +630,7 @@ UnitsSchemaInternal::schemaTranslate(const Quantity& quant, double& factor, QStr
     }
     else {
         // default action for all cases without special treatment:
-        unitString = quant.getUnit().getString();
+        unitString = QString::fromStdString(quant.getUnit().getString());
         factor = 1.0;
     }