Traceback on Embed Image from context menu on a linked SVG file (1.0.x)

Summary:

I get a traceback when right clicking on an SVG image embedded in another SVG image and selecting Embed Image.

This is a follow-up to a related issue here: #283 (closed)

I'm filing this issue here as the right-click context menu appears to exist in core inkscape, rather than an extension. The code for adding Embed Image to the right-click context menu is in core inkscape, at any rate.

I tried copying these files from master into ~/.config/inkscape/extensions:

• embedimage.inx
• embedimage.py
• embedselectedimages.inx

I saw another Extensions > Images > Embed Images... menu option, so I think I installed the master copy correctly, but that did not make the right-click context menu Embed Image option work.

Steps to reproduce:

• open Inkscape
• open SVG image that embeds another SVG image
• right click on embedded SVG image
• select Embed Image
• get traceback

What happened?

I got this traceback:

Traceback (most recent call last):
  File "embedimage.py", line 119, in <module>
    EmbedImage().run()
  File "/snap/inkscape/7809/share/inkscape/extensions/inkex/base.py", line 140, in run
    self.save_raw(self.effect())
  File "embedimage.py", line 56, in effect
    self.embed_image(node)
  File "embedimage.py", line 60, in embed_image
    xlink = node.get('xlink:href')
AttributeError: 'str' object has no attribute 'get'

What should have happened?

The image should have been embedded

Sample attachments:

See SVG files from #283 (closed) , for easy downloads bar.svg and foo.svg (open foo.svg)

Version Info:

- Inkscape Version: 1.0-9f2f71dc58-2020-08-02 (7809) [installed via snap]
- Operating System: Ubuntu
- Operating System version: 20.04

From comments, issue was introduced in 6b3e47e4