Ensure recipient models are up-to-date.

src/org/thoughtcrime/securesms/database/model/DisplayRecord.java

@@ -84,7 +84,7 @@ public abstract class DisplayRecord {
   public abstract SpannableString getDisplayBody(@NonNull Context context);
 
   public Recipient getRecipient() {
-    return recipient;
+    return recipient.live().get();
   }
 
   public long getDateSent() {

src/org/thoughtcrime/securesms/database/model/MessageRecord.java

@@ -188,7 +188,7 @@ public abstract class MessageRecord extends DisplayRecord {
   }
 
   public Recipient getIndividualRecipient() {
-    return individualRecipient;
+    return individualRecipient.live().get();
   }
 
   public int getRecipientDeviceId() {

src/org/thoughtcrime/securesms/notifications/MessageNotifier.java

@@ -444,8 +444,8 @@ public class MessageNotifier {
     while ((record = reader.getNext()) != null) {
       long         id                    = record.getId();
       boolean      mms                   = record.isMms() || record.isMmsNotification();
-      Recipient    recipient             = record.getIndividualRecipient();
-      Recipient    conversationRecipient = record.getRecipient();
+      Recipient    recipient             = record.getIndividualRecipient().resolve();
+      Recipient    conversationRecipient = record.getRecipient().resolve();
       long         threadId              = record.getThreadId();
       CharSequence body                  = record.getDisplayBody(context);
       Recipient    threadRecipients      = null;

src/org/thoughtcrime/securesms/recipients/Recipient.java

@@ -227,10 +227,10 @@ public class Recipient {
   }
 
   public @NonNull MaterialColor getColor() {
-    if      (isGroup()) return MaterialColor.GROUP;
-    else if (color != null)      return color;
-    else if (name != null)       return ContactColors.generateFor(name);
-    else                         return ContactColors.UNKNOWN_COLOR;
+    if      (isGroup())     return MaterialColor.GROUP;
+    else if (color != null) return color;
+    else if (name != null)  return ContactColors.generateFor(name);
+    else                    return ContactColors.UNKNOWN_COLOR;
   }
 
   public @NonNull Address requireAddress() {
@@ -262,15 +262,16 @@ public class Recipient {
   }
 
   public boolean isGroup() {
-    return address != null && address.isGroup();
+    return requireAddress().isGroup();
   }
 
   public boolean isMmsGroup() {
-    return address != null && address.isMmsGroup();
+    return requireAddress().isMmsGroup();
   }
 
   public boolean isPushGroup() {
-    return address != null && address.isGroup() && !address.isMmsGroup();
+    Address address = requireAddress();
+    return address.isGroup() && !address.isMmsGroup();
   }
 
   public @NonNull List<Recipient> getParticipants() {
@@ -278,9 +279,7 @@ public class Recipient {
   }
 
   public @NonNull String toShortString() {
-    return getName() == null ? address == null ? ""
-                                               : address.serialize()
-                             : getName();
+    return Optional.fromNullable(getName()).or(Optional.of(requireAddress().serialize())).get();
   }
 
   public @NonNull Drawable getFallbackContactPhotoDrawable(Context context, boolean inverted) {