SVG rendering issue when using filter

[Mizux]

Summary

I have an issue when trying to render a svg file containing some filter in my README.md

Setup

My src/stone.svg and point to it using ![img](src/stone.svg) in a README.md:

<svg
  width="256"
  height="256"
  xmlns="http://www.w3.org/2000/svg"
  xmlns:xlink="http://www.w3.org/1999/xlink"
  version="1.1">
<defs>
  <filter id="grain" y="0%" x="0%" height="100%" width="100%">
    <feTurbulence type="fractalNoise" seed="8" numOctaves="4" baseFrequency="0.064" result="noise"/>
    <feDiffuseLighting surfaceScale="2" lighting-color="white" in="noise" result="diffLight">
      <feDistantLight elevation="33" azimuth="45"/>
    </feDiffuseLighting>
    <feComposite operator="in" in2="SourceGraphic" result="result3" />
    <feBlend mode="multiply" in="result3" in2="SourceGraphic" result="result2"/>
  </filter>
</defs>
<rect
  fill="#552200" filter="url(#grain)"
  x="0" y="0" width="256" height="256" />

<path
  style="fill:#008000;stroke:none;stroke-width:5;stroke-linejoin:round;stroke-miterlimit:4;stroke-dasharray:none;stroke-opacity:1;paint-order:stroke fill markers;filter:url(#grain)"
  d="M 0,0 V 64 c 100.271869,66.093035 194.245559,38.983922 256,0 V 0 z"
  />
</svg>

Observed

I got a wrong rendering when using ![img](src/stone.svg):

Workaround

I got the correct rendering when using ![stone](https://rawgit.luolix.top/Mizux/svg/master/src/stone.svg)

note: the svg is correctly rendered here also: https://github.com/Mizux/svg/blob/master/src/stone.svg
maybe related to:

• Fix relative SVG rendering #556

[github-actions]

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[Mizux]

seems fixed !