Don't transmit SMS contact information to multi-device on change

Fixes #5710

// FREEBIE

src/org/thoughtcrime/securesms/RecipientPreferenceActivity.java

@@ -40,6 +40,7 @@ import org.thoughtcrime.securesms.preferences.AdvancedRingtonePreference;
 import org.thoughtcrime.securesms.preferences.ColorPreference;
 import org.thoughtcrime.securesms.recipients.RecipientFactory;
 import org.thoughtcrime.securesms.recipients.Recipients;
+import org.thoughtcrime.securesms.util.DirectoryHelper;
 import org.thoughtcrime.securesms.util.DynamicLanguage;
 import org.thoughtcrime.securesms.util.DynamicNoActionBarTheme;
 import org.thoughtcrime.securesms.util.DynamicTheme;
@@ -388,9 +389,13 @@ public class RecipientPreferenceActivity extends PassphraseRequiredActionBarActi
               DatabaseFactory.getRecipientPreferenceDatabase(context)
                              .setColor(recipients, selectedColor);
 
+              if (DirectoryHelper.getUserCapabilities(context, recipients)
+                                 .getTextCapability() == DirectoryHelper.UserCapabilities.Capability.SUPPORTED)
+              {
                 ApplicationContext.getInstance(context)
                                   .getJobManager()
                                   .add(new MultiDeviceContactUpdateJob(context, recipients.getPrimaryRecipient().getRecipientId()));
+              }
               return null;
             }
           }.execute();

src/org/thoughtcrime/securesms/jobs/MultiDeviceContactUpdateJob.java

@@ -19,6 +19,7 @@ import org.thoughtcrime.securesms.jobs.requirements.MasterSecretRequirement;
 import org.thoughtcrime.securesms.recipients.Recipient;
 import org.thoughtcrime.securesms.recipients.RecipientFactory;
 import org.thoughtcrime.securesms.recipients.Recipients;
+import org.thoughtcrime.securesms.util.TextSecurePreferences;
 import org.whispersystems.jobqueue.JobParameters;
 import org.whispersystems.jobqueue.requirements.NetworkRequirement;
 import org.whispersystems.libsignal.util.guava.Optional;
@@ -69,6 +70,11 @@ public class MultiDeviceContactUpdateJob extends MasterSecretJob implements Inje
   public void onRun(MasterSecret masterSecret)
       throws IOException, UntrustedIdentityException, NetworkException
   {
+    if (!TextSecurePreferences.isMultiDevice(context)) {
+      Log.w(TAG, "Not multi device, aborting...");
+      return;
+    }
+
     if (recipientId <= 0) generateFullContactUpdate();
     else                  generateSingleContactUpdate(recipientId);
   }