`sourcelink.html` template from sphinx basic theme is used instead of theme one

[OriolAbril]

I don't have time right now to try and get a MWE but figured it might be useful to report already. Feel free to ignore until it is reproduceable though.

Some doc builds end up using sourcelink.html from sphinx itself instead of the sourcelink.html defined by the theme. Consequently, this ends up in right sidebars that look like the following:

instead of the expected version using the theme provided template:

Versions used:

sphinx 8.1.3 pydata-sphinx-theme 0.16.1