SVG text color gradient shifts with zoom

[AustrianLinuxMemer]

 * Xviewer version 3.2.4
 * Distribution - (Mint 20.3)

Issue
The SVG Text color gradient shifts with zoom

Steps to reproduce
Open up a SVG file with a text colored in a gradient and zoom in/out

Expected behaviour
The color gradient shifts with the text

Other information
This bug is only apparent when it is a text

Here are files to observe the behavior on

SVG with path color gradient

SVG with text color gradient
Download the files and open them in Xviewer side by side

[programmer-ceds]

I can confirm that this issue appears in xviewer 3.2.7 in Mint 20.3 Cinnamon.

The problem is also seen when the image is too big to fit in the window and is scrolled or dragged by the mouse.

Pix and (not surprisingly) Inkscape display the text correctly (as does GIMP but of course this is a 'one-shot' display as it is converted to raster mode on loading).

No promises but I will have a look to try to determine the difference between the pix code and the xviewer code.