Keep all unhandled fields of remote storage record

Fixes #1792

Author: AsamK

lib/src/main/java/org/asamk/signal/manager/syncStorage/AccountRecordProcessor.java

@@ -111,7 +111,7 @@ protected SignalAccountRecord merge(SignalAccountRecord remoteRecord, SignalAcco
             backupsPurchaseToken = IAPSubscriptionId.Companion.from(local.backupSubscriberData);
         }
 
-        final var mergedBuilder = SignalAccountRecord.Companion.newBuilder(remote.unknownFields().toByteArray())
+        final var mergedBuilder = remote.newBuilder()
                 .givenName(givenName)
                 .familyName(familyName)
                 .avatarUrlPath(firstNonEmpty(remote.avatarUrlPath, local.avatarUrlPath))

lib/src/main/java/org/asamk/signal/manager/syncStorage/ContactRecordProcessor.java

@@ -172,7 +172,7 @@ protected SignalContactRecord merge(SignalContactRecord remoteRecord, SignalCont
             e164 = firstNonEmpty(remote.e164, local.e164);
         }
 
-        final var mergedBuilder = SignalContactRecord.Companion.newBuilder(remote.unknownFields().toByteArray())
+        final var mergedBuilder = remote.newBuilder()
                 .aci(local.aci.isEmpty() ? remote.aci : local.aci)
                 .e164(e164)
                 .pni(pni)

lib/src/main/java/org/asamk/signal/manager/syncStorage/GroupV1RecordProcessor.java

@@ -74,7 +74,7 @@ protected SignalGroupV1Record merge(SignalGroupV1Record remoteRecord, SignalGrou
         final var remote = remoteRecord.getProto();
         final var local = localRecord.getProto();
 
-        final var mergedBuilder = SignalGroupV1Record.Companion.newBuilder(remote.unknownFields().toByteArray())
+        final var mergedBuilder = remote.newBuilder()
                 .id(remote.id)
                 .blocked(remote.blocked)
                 .whitelisted(remote.whitelisted)

lib/src/main/java/org/asamk/signal/manager/syncStorage/GroupV2RecordProcessor.java

@@ -53,7 +53,7 @@ protected SignalGroupV2Record merge(SignalGroupV2Record remoteRecord, SignalGrou
         final var remote = remoteRecord.getProto();
         final var local = localRecord.getProto();
 
-        final var mergedBuilder = SignalGroupV2Record.Companion.newBuilder(remote.unknownFields().toByteArray())
+        final var mergedBuilder = remote.newBuilder()
                 .masterKey(remote.masterKey)
                 .blocked(remote.blocked)
                 .whitelisted(remote.whitelisted)