Fix fill of looping lines in exported SVG (#1396)

src/renderer/renderElement.ts

@@ -426,6 +426,9 @@ export function renderElementToSvg(
             offsetY || 0
           }) rotate(${degree} ${cx} ${cy})`,
         );
+        if (element.type === "line") {
+          node.setAttribute("fill-rule", "evenodd");
+        }
         group.appendChild(node);
       });
       svgRoot.appendChild(group);