When I save any file (new or existing) there is a strange line in the xmlns section:

   xmlns="http://www.w3.org/2000/svg"

so the context looks like this:

   xmlns:inkscape="http://www.inkscape.org/namespaces/inkscape"
   xmlns:sodipodi="http://sodipodi.sourceforge.net/DTD/sodipodi-0.dtd"
   xmlns="http://www.w3.org/2000/svg"
   xmlns:svg="http://www.w3.org/2000/svg">

 this came with an update from Inkscape 1.0.1 to 1.2.2 ( Debian 11 to Debian 12)

Most programs have no problem with this, but I use Inkscape to create temlate SVGs that are further processed. This next step is messing up the whole file because of this. If I just delete the line with 'xmlns="http' in a simple text editor, everything works fine. But the line is reinserted everytime I save a file in Inkscape.

For me this looks like a bug, as it looks like this is a messed up version of the following line. If this was intentional it breaks things that previously worked, so there should be a good reason.

How to reproduce:

• (clear settings folder)
• open Inkscape
• select new file
• save as test.svg
• --> result is as attached
• close Inkscape
• open test.svg with editor
• delete suspicious line
• open with Inkscape
• save again (use 'save as' because no changes made)
• --> strange line is there again

Please ask, if you need any further information.

PS:

I'd have directly filed a bug in GitLab, but they demand a valid mobile number or creditcard details to create an account. I'll not share this private information just to file a bug.

I never had to provide that stuff for GitLab. 🤔

Try this link: https://gitlab.com/users/sign_up

Seems all my files back to .91.0 have that declaration. Do you have examples directly from 1.0.1 that do not have the line?