diff --git a/lib/OpenLayers.js b/lib/OpenLayers.js
index f6df5e1915..24c7d0e8b5 100644
--- a/lib/OpenLayers.js
+++ b/lib/OpenLayers.js
@@ -414,4 +414,4 @@
 /**
  * Constant: VERSION_NUMBER
  */
-OpenLayers.VERSION_NUMBER="Release 2.12-rc2";
+OpenLayers.VERSION_NUMBER="Release 2.12-rc3";
diff --git a/lib/OpenLayers/Layer.js b/lib/OpenLayers/Layer.js
index 154e3120c0..2c29e72c4b 100644
--- a/lib/OpenLayers/Layer.js
+++ b/lib/OpenLayers/Layer.js
@@ -1015,7 +1015,7 @@ OpenLayers.Layer = OpenLayers.Class({
            this.maxExtent != null) {
             // maxResolution for default grid sets assumes that at zoom
             // level zero, the whole world fits on one tile.
-            var tileSize = this.tileSize || this.map.getTileSize();
+            var tileSize = this.map.getTileSize();
             maxResolution = Math.max(
                 this.maxExtent.getWidth() / tileSize.w,
                 this.maxExtent.getHeight() / tileSize.h
diff --git a/lib/OpenLayers/SingleFile.js b/lib/OpenLayers/SingleFile.js
index 5ea5ae5a31..53060cc956 100644
--- a/lib/OpenLayers/SingleFile.js
+++ b/lib/OpenLayers/SingleFile.js
@@ -7,7 +7,7 @@ var OpenLayers = {
     /**
      * Constant: VERSION_NUMBER
      */
-    VERSION_NUMBER: "Release 2.12-rc2",
+    VERSION_NUMBER: "Release 2.12-rc3",
 
     /**
      * Constant: singleFile