It seems to be fixed in the latest version of drawio (24.0.x), but the older 20.8.3 version included in the extension has it. This issue appeared in the extension only a few weeks ago, which is strange, since the last version dates from the start of 2023.
The current version (1.6.6) of the wonderful drawio VsCode extension is suffering from this issue, coming from drawio:
https://github.com/jgraph/drawio/issues/2960
It seems to be fixed in the latest version of drawio (24.0.x), but the older 20.8.3 version included in the extension has it. This issue appeared in the extension only a few weeks ago, which is strange, since the last version dates from the start of 2023.