Fix sending and receiving profile.

Don't delete profile after if we set the display name to empty.

js/background.js

@@ -580,19 +580,19 @@
           onOk: async (newName) => {
             // Update our profiles accordingly'
             const trimmed = newName && newName.trim();
-            let newProfile = null;
+
+            // If we get an empty name then unset the name property
+            // Otherwise update it
+            const newProfile = profile || {};
             if (_.isEmpty(trimmed)) {
-              await storage.removeLocalProfile();
+              delete newProfile.name;
             } else {
-              newProfile = {
-                ...(profile || {}),
-                name: {
-                  displayName: trimmed,
-                },
-              };
-              await storage.saveLocalProfile(newProfile);
+              newProfile.name = {
+                displayName: trimmed,
+              }
             }
 
+            await storage.saveLocalProfile(newProfile);
             appView.inboxView.trigger('updateProfile');
 
             // Update the conversation if we have it

libtextsecure/message_receiver.js

@@ -918,7 +918,7 @@ MessageReceiver.prototype.extend({
       p = this.handleEndSession(envelope.source);
     }
     return p.then(() =>
-      this.processDecrypted(envelope, msg, envelope.source).then(async message => {
+      this.processDecrypted(envelope, msg, envelope.source).then(message => {
         const groupId = message.group && message.group.id;
         const isBlocked = this.isGroupBlocked(groupId);
         const isMe = envelope.source === textsecure.storage.user.getNumber();
@@ -932,8 +932,7 @@ MessageReceiver.prototype.extend({
         if (!isMe && conversation) {
           let profile = null;
           if (message.profile) {
-            const name = JSON.parse(message.profile.name.encodeJSON());
-            profile = { name };
+            profile = JSON.parse(message.profile.encodeJSON());
           }
 
           // Update the conversation

libtextsecure/sendmessage.js

@@ -135,7 +135,8 @@ Message.prototype = {
 
     if (this.profile) {
       const contact = new textsecure.protobuf.DataMessage.Contact();
-      contact.name = this.profile.name;
+      if (this.profile.name)
+        contact.name = this.profile.name;
       proto.profile = contact;
     }