diff --git a/services/core/java/com/android/server/wm/WindowProcessController.java b/services/core/java/com/android/server/wm/WindowProcessController.java
index 29cf1776df9ce..bd959aba5bb10 100644
--- a/services/core/java/com/android/server/wm/WindowProcessController.java
+++ b/services/core/java/com/android/server/wm/WindowProcessController.java
@@ -188,7 +188,6 @@ public class WindowProcessController extends ConfigurationContainer<Configuratio
     private final Configuration mLastReportedConfiguration = new Configuration();
     // Configuration that is waiting to be dispatched to the process.
     private Configuration mPendingConfiguration;
-    private final Configuration mNewOverrideConfig = new Configuration();
     // Registered display id as a listener to override config change
     private int mDisplayId;
     private ActivityRecord mConfigActivityRecord;
@@ -1167,12 +1166,27 @@ public class WindowProcessController extends ConfigurationContainer<Configuratio
         updateConfiguration();
     }
 
+    @Override
+    public void onRequestedOverrideConfigurationChanged(Configuration overrideConfiguration) {
+        super.onRequestedOverrideConfigurationChanged(
+                sanitizeProcessConfiguration(overrideConfiguration));
+    }
+
     @Override
     public void onMergedOverrideConfigurationChanged(Configuration mergedOverrideConfig) {
+        super.onRequestedOverrideConfigurationChanged(
+                sanitizeProcessConfiguration(mergedOverrideConfig));
+    }
+
+    private static Configuration sanitizeProcessConfiguration(Configuration config) {
         // Make sure that we don't accidentally override the activity type.
-        mNewOverrideConfig.setTo(mergedOverrideConfig);
-        mNewOverrideConfig.windowConfiguration.setActivityType(ACTIVITY_TYPE_UNDEFINED);
-        super.onRequestedOverrideConfigurationChanged(mNewOverrideConfig);
+        if (config.windowConfiguration.getActivityType() != ACTIVITY_TYPE_UNDEFINED) {
+            final Configuration sanitizedConfig = new Configuration(config);
+            sanitizedConfig.windowConfiguration.setActivityType(ACTIVITY_TYPE_UNDEFINED);
+            return sanitizedConfig;
+        }
+
+        return config;
     }
 
     private void updateConfiguration() {
diff --git a/services/tests/wmtests/src/com/android/server/wm/WindowProcessControllerTests.java b/services/tests/wmtests/src/com/android/server/wm/WindowProcessControllerTests.java
index cdf8eb4faf1d8..24950ce6a8826 100644
--- a/services/tests/wmtests/src/com/android/server/wm/WindowProcessControllerTests.java
+++ b/services/tests/wmtests/src/com/android/server/wm/WindowProcessControllerTests.java
@@ -16,6 +16,8 @@
 
 package com.android.server.wm;
 
+import static android.app.WindowConfiguration.ACTIVITY_TYPE_HOME;
+import static android.app.WindowConfiguration.ACTIVITY_TYPE_UNDEFINED;
 import static android.content.res.Configuration.ORIENTATION_LANDSCAPE;
 import static android.content.res.Configuration.ORIENTATION_PORTRAIT;
 import static android.view.Display.INVALID_DISPLAY;
@@ -253,6 +255,19 @@ public class WindowProcessControllerTests extends ActivityTestsBase {
         assertFalse(mWpc.registeredForActivityConfigChanges());
     }
 
+    @Test
+    public void testProcessLevelConfiguration() {
+        Configuration config = new Configuration();
+        config.windowConfiguration.setActivityType(ACTIVITY_TYPE_HOME);
+        mWpc.onRequestedOverrideConfigurationChanged(config);
+        assertEquals(ACTIVITY_TYPE_HOME, config.windowConfiguration.getActivityType());
+        assertEquals(ACTIVITY_TYPE_UNDEFINED, mWpc.getActivityType());
+
+        mWpc.onMergedOverrideConfigurationChanged(config);
+        assertEquals(ACTIVITY_TYPE_HOME, config.windowConfiguration.getActivityType());
+        assertEquals(ACTIVITY_TYPE_UNDEFINED, mWpc.getActivityType());
+    }
+
     private TestDisplayContent createTestDisplayContentInContainer() {
         return new TestDisplayContent.Builder(mService, 1000, 1500).build();
     }