Fix thread update race for draft update.

app/src/main/java/org/thoughtcrime/securesms/database/ThreadTable.kt

@@ -1389,6 +1389,8 @@ class ThreadTable(context: Context, databaseHelper: SignalDatabase) : DatabaseTa
       return false
     }
 
+    writableDatabase.beginTransaction()
+    try {
       val meaningfulMessages = messages.hasMeaningfulMessage(threadId)
 
       val isPinned by lazy { getPinnedThreadIds().contains(threadId) }
@@ -1398,6 +1400,7 @@ class ThreadTable(context: Context, databaseHelper: SignalDatabase) : DatabaseTa
         if (shouldDelete) {
           Log.d(TAG, "Deleting thread $threadId because it has no meaningful messages.")
           deleteConversation(threadId)
+          writableDatabase.setTransactionSuccessful()
           return true
         } else if (!isPinned) {
           return false
@@ -1413,9 +1416,8 @@ class ThreadTable(context: Context, databaseHelper: SignalDatabase) : DatabaseTa
           Log.w(TAG, "Failed to get a conversation snippet for thread $threadId")
           if (shouldDelete) {
             deleteConversation(threadId)
-        }
-
-        if (isPinned) {
+            writableDatabase.setTransactionSuccessful()
+          } else if (isPinned) {
             updateThread(
               threadId = threadId,
               meaningfulMessages = meaningfulMessages,
@@ -1431,6 +1433,7 @@ class ThreadTable(context: Context, databaseHelper: SignalDatabase) : DatabaseTa
               expiresIn = 0,
               readReceiptCount = 0
             )
+            writableDatabase.setTransactionSuccessful()
           }
           return true
         } else {
@@ -1471,8 +1474,11 @@ class ThreadTable(context: Context, databaseHelper: SignalDatabase) : DatabaseTa
       if (notifyListeners) {
         notifyConversationListListeners()
       }
-
+      writableDatabase.setTransactionSuccessful()
       return false
+    } finally {
+      writableDatabase.endTransaction()
+    }
   }
 
   fun updateSnippetTypeSilently(threadId: Long) {