fix flickering when switching background layers or zooming

closes #10738

fixes a regression in 98d29e908f, overriding the original fix from 460a9efce1

CHANGELOG.md

@@ -53,6 +53,14 @@ _Breaking developer changes, which may affect downstream projects or sites that
 [#10003]: https://github.com/openstreetmap/iD/pull/10003
 
 
+# 2.31.1
+##### 2025-Feb-06
+
+* Fix flickering when switching background layers or zooming ([#10738])
+
+[#10738]: https://github.com/openstreetmap/iD/issues/10738
+
+
 # 2.31.0
 ##### 2025-Feb-05
 

css/80_app.css

@@ -4388,7 +4388,8 @@ img.tile {
     }
 }
 
-img.tile-removing {
+.layer-background img.tile-removing,
+.map-in-map-background img.tile-removing {
     opacity: 0;
     z-index: 1;
     mix-blend-mode: normal;