Running "eas update" removes google maps API key from app.json

We’ve been using expo for making our app, and eas build has been working fine for building the app and running it
However, an odd thing happens when I try to use eas update

We use Google Maps in our app for Android, and the api key is set in app.json, under
However, running eas update removes this entry from the app.json file when it adds the expo.updates.url entry

Is this a bug, or am I doing something wrong? (Google Maps works fine when the API key is there, so I don’t think I’ve put it in the wrong place)

Managed workflow
eas-cli/3.7.2 win32-x64 node-v14.18.1
Updated to 3.8.0 but same result