Markers don't survive pass through <use xlink:href="file.svg">

Given an svg file "markertest.svg" which includes a path with a marker Arrow1Lend defined in the file, and another svg file parent.svg which contains an item layer1 of markertest.svg via a <use> tag, Arrow1Lend does not appear when displaying parent.svg

markertest.svg:

<?xml version="1.0" encoding="UTF-8" standalone="no"?>
<svg
   xmlns:svg="http://www.w3.org/2000/svg" 
   xmlns:xlink= "http://www.w3.org/1999/xlink" 
   xmlns="http://www.w3.org/2000/svg"
   width="1000" height="1000" viewBox="-10 -10 20 20"
   id="svg2" version="1.1"
>
 <defs>
    <marker orient="auto" refY="0.0" refX="0.0" id="Arrow1Lend" style="overflow:visible;">
      <path
         d="M 0.0,0.0 L 5.0,-5.0 L -12.5,0.0 L 5.0,5.0 L 0.0,0.0 z "
         style="stroke:black;stroke-width:1pt;stroke-opacity:1;fill:#000000;fill-opacity:1"
         transform="scale(0.8) rotate(180) translate(12.5,0)"
      />
    </marker>
  </defs>
  <g id="layer1">
    <path 
       style="fill:none;stroke:black;stroke-width:0.05;stroke-opacity:1;marker-end:url(#Arrow1Lend)"
       d="m 0,-5 0,5" 
    />
  </g>
</svg>

parent.svg:

<?xml version="1.0" encoding="UTF-8" standalone="no"?>
<svg
   xmlns:svg="http://www.w3.org/2000/svg"
   xmlns:xlink= "http://www.w3.org/1999/xlink"
   xmlns="http://www.w3.org/2000/svg"
   width="1000"
   height="1000"
   viewBox="0 0 20 20"
   id="svg2"
   version="1.1"
>
   <use xlink:href="markertest.svg#layer1" transform="translate(10 10)"/>
</svg>

Tested with rsvg-view-3. librsvg: librsvg-2.so.2.40.13 from Ubuntu 16.04.3 Also tested with : 2.42.2 (the latest I'm able to easily compile) and confirmed the same

Affects a large number of applications dependant on rsvg including EOG(EyeOfGnome) and Gthumb