From 1fee5f1e4034541e4fc0160cacc2ba2d44b3b57e Mon Sep 17 00:00:00 2001
From: Ryan Hamley <ryan.hamley@mapbox.com>
Date: Mon, 7 Oct 2019 16:12:34 -0700
Subject: [PATCH] Avoid throwing styleimagemissing event for empty strings
 (#8840)

---
 src/data/bucket/symbol_bucket.js | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/data/bucket/symbol_bucket.js b/src/data/bucket/symbol_bucket.js
index d1cad2d312a..b506c48f61e 100644
--- a/src/data/bucket/symbol_bucket.js
+++ b/src/data/bucket/symbol_bucket.js
@@ -382,7 +382,7 @@ class SymbolBucket implements Bucket {
         // this allows us to fire the styleimagemissing event if image evaluation returns null
         // the only way to distinguish between null returned from a coalesce statement with no valid images
         // and null returned because icon-image wasn't defined is to check whether or not iconImage.parameters is an empty object
-        const hasIcon = iconImage.value.kind !== 'constant' || !!iconImage.value.value || Object.keys(iconImage.parameters).length > 0;
+        const hasIcon = (iconImage.value.kind !== 'constant' || !!iconImage.value.value) && Object.keys(iconImage.parameters).length > 0;
         const symbolSortKey = layout.get('symbol-sort-key');
 
         this.features = [];