From d5eaabb7edf62a8c03efa604520ca1dc007ddcf0 Mon Sep 17 00:00:00 2001
From: Stepan Kuzmin <stepan.kuzmin@mapbox.com>
Date: Mon, 8 May 2023 14:46:08 +0300
Subject: [PATCH] Use map transform in case when source is not yet loaded on
 _preloadTiles

---
 src/source/source_cache.js | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/src/source/source_cache.js b/src/source/source_cache.js
index a1afffb650c..f7d2dc41ce3 100644
--- a/src/source/source_cache.js
+++ b/src/source/source_cache.js
@@ -1020,9 +1020,10 @@ class SourceCache extends Evented {
         }
 
         const tileIDs = Array.from(coveringTilesIDs.values());
+        const tileZoom = this.transform ? this.transform.tileZoom : this.map.transform.tileZoom;
 
         asyncAll(tileIDs, (tileID, done) => {
-            const tile = new Tile(tileID, this._source.tileSize * tileID.overscaleFactor(), this.transform.tileZoom, this.map.painter, this._isRaster);
+            const tile = new Tile(tileID, this._source.tileSize * tileID.overscaleFactor(), tileZoom, this.map.painter, this._isRaster);
             this._loadTile(tile, (err) => {
                 if (this._source.type === 'raster-dem' && tile.dem) this._backfillDEM(tile);
                 done(err, tile);