Merge "Unregistering PackageMonitor only when has registered it" am: 132f17ca3e

Original change: https://android-review.googlesource.com/c/platform/frameworks/base/+/1456123

Change-Id: I6fdb78c24cf3c09433a2b183dd74c25fd991ec4f

core/java/com/android/internal/app/ResolverActivity.java

@@ -1281,7 +1281,7 @@ public class ResolverActivity extends Activity implements
     private void safelyStartActivityInternal(TargetInfo cti) {
         // If the target is suspended, the activity will not be successfully launched.
         // Do not unregister from package manager updates in this case
-        if (!cti.isSuspended()) {
+        if (!cti.isSuspended() && mRegistered) {
             if (mPersonalPackageMonitor != null) {
                 mPersonalPackageMonitor.unregister();
             }