fill using radialGradient not rendered
On the right side of https://commons.wikimedia.org/wiki/File:LibrsvgBug_T193942.svg something is missing.
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE svg PUBLIC '-//W3C//DTD SVG 1.1//EN' 'http://www.w3.org/Graphics/SVG/1.1/DTD/svg11.dtd'>
<svg xmlns:xlink="http://www.w3.org/1999/xlink" fill-rule="evenodd" image-rendering="optimizeQuality" shape-rendering="geometricPrecision" text-rendering="geometricPrecision" viewBox="0 0 74213 43403" xmlns="http://www.w3.org/2000/svg" width="742.13" height="434.03">
<radialGradient id="a" cx="31807" cy="34229" r="25550" gradientUnits="userSpaceOnUse">
<stop stop-color="#bbb" offset="0"/>
<stop offset="1" stop-color="#000"/>
</radialGradient>
<path d="m23209 7036.7 44790-298c839 1555 1299 3174 879 4461 859 487 1499 994 1830 1810 111 472 73 556-33 761l-102 101-145 61-363-81c-2893-1049-5202 535-5148 2996 538 6483 10121 10648 9251 24121-179 239-894 348-1825 803-566 277-1338 204-2108 182-1349 933-6308 2174-11028 883-73-26-206-280-160-339 47-58 120-212 271-212 882-1 2089-482 1887-1106-615-1893-1382-3875-2441-6500l-3765-9336c-341-846-185-597-449-1191-116-260-732-894-1178-1370-309-329-1405-497-1830-515l-9780 297c-1160 33-2560-493-3327-1406-51-60-465-719-514-784-1635-2151 795-7215-4902-7014l-9899 134z" fill="url(#a)" stroke="#000" stroke-width="21"/>
</svg>