[Bug] Uncaught ReferenceError: _define_property is not defined

Description

Bit of an odd one that I can't quite figure out. react-map-gl has a peer dependency on maplibre-gl. If I end up with a upgrade of maplibre-gl from 5.11.0 to 5.12.0 (or 5.13.0) I get an error in the browser console, and the map doesn't render:

Browser console:

dbf3e5f8-162b-4b7e-8…-d8d408c9388f:17308 Uncaught ReferenceError: _define_property is not defined
    at dbf3e5f8-162b-4b7e-8…8d408c9388f:17308:9
    at dbf3e5f8-162b-4b7e-8…8d408c9388f:19735:7

Not working with maplibre-gl 5.12.0

mat@devbox:~/dev/sandbox$ pnpm add maplibre-gl@5.12.0
Already up to date
Progress: resolved 299, reused 228, downloaded 0, added 0, done
Done in 1.9s using pnpm v10.23.0

mat@devbox:~/dev/sandbox$ pnpm why maplibre-gl
Legend: production dependency, optional only, dev only

airfieldmap@0.1.0 /home/mat/dev/sandbox (PRIVATE)

dependencies:
maplibre-gl 5.12.0
react-map-gl 8.1.0
├─┬ @vis.gl/react-maplibre 8.1.0
│ └── maplibre-gl 5.12.0 peer
└── maplibre-gl 5.12.0 peer

Working okay with maplibre-gl 5.11.0

mat@devbox:~/dev/sandbox$ pnpm add maplibre-gl@5.11.0
Packages: +3 -4
+++----
Progress: resolved 298, reused 227, downloaded 0, added 0, done

dependencies:
- maplibre-gl 5.12.0
+ maplibre-gl 5.11.0 (5.13.0 is available)

Done in 3s using pnpm v10.23.0

mat@devbox:~/dev/sandbox$ pnpm why maplibre-gl
Legend: production dependency, optional only, dev only

airfieldmap@0.1.0 /home/mat/dev/sandbox (PRIVATE)

dependencies:
react-map-gl 8.1.0
├─┬ @vis.gl/react-maplibre 8.1.0
│ └── maplibre-gl 5.11.0 peer
└── maplibre-gl 5.11.0 peer

I guess it's a maplibre-gl problem, but I'm using it from react-map-gl and getting confused. Am I doing anything stupid in the attached sandbox?

Expected Behaviour

Works the same between maplibre-gl@5.11.0 and maplibre-gl@5.12.0 (or 5.13.0)

Steps to Reproduce

sandbox.zip

Environment

Framework version: react-map-gl@8.1.0
Map library: maplibre-gl@5.12.0
Browser: Chrome 142.0.7444.176
OS: Windows 11 25H2 26200.7171

Logs

No response

Start with the attached sandbox.zip and reproduce the browser ReferenceError while switching between maplibre-gl 5.11.0 and 5.12.0 or 5.13.0. Compare the package behavior and browser output; done means the map renders without the _define_property error on the newer versions, or the incompatibility is clearly isolated.