v4.2.1

🐞 Bug fixes

• Attribution banner no longer re-expands on every source refresh — onSourceChanged fires for every runtime source mutation, including an app updating a GeoJSON source on a timer, and the attribution handler rebuilt the banner and re-expanded it each time — so an app refreshing a live overlay every few seconds had the attribution popup permanently reopening. The Android, iOS/MacCatalyst, and WPF controls now track the attribution content they last applied and only rewrite/re-expand the banner when that content actually changed (a new style load still shows it once, and newly added sources still surface their attribution). The WinUI control already only refreshed while empty and is unchanged.