diff --git a/MastodonSDK/Sources/MastodonCore/Extension/CoreDataStack/Status+Property.swift b/MastodonSDK/Sources/MastodonCore/Extension/CoreDataStack/Status+Property.swift
index 2d054c83b..a54610b37 100644
--- a/MastodonSDK/Sources/MastodonCore/Extension/CoreDataStack/Status+Property.swift
+++ b/MastodonSDK/Sources/MastodonCore/Extension/CoreDataStack/Status+Property.swift
@@ -35,7 +35,7 @@ extension Status.Property {
             deletedAt: nil,
             attachments: entity.mastodonAttachments,
             emojis: entity.mastodonEmojis,
-            mentions: entity.mastodonMentions
+            mentions: []
         )
     }
 }
diff --git a/MastodonSDK/Sources/MastodonCore/Persistence/Protocol/MastodonMentionContainer.swift b/MastodonSDK/Sources/MastodonCore/Persistence/Protocol/MastodonMentionContainer.swift
deleted file mode 100644
index 75cae7573..000000000
--- a/MastodonSDK/Sources/MastodonCore/Persistence/Protocol/MastodonMentionContainer.swift
+++ /dev/null
@@ -1,24 +0,0 @@
-//
-//  MastodonMentionContainer.swift
-//  Mastodon
-//
-//  Created by MainasuK on 2022-1-17.
-//
-
-import Foundation
-import CoreDataStack
-import MastodonSDK
-
-public protocol MastodonMentionContainer {
-    var mentions: [Mastodon.Entity.Mention]? { get }
-}
-
-extension MastodonMentionContainer {
-    public var mastodonMentions: [MastodonMention] {
-        return mentions.flatMap { mentions in
-            mentions.map { MastodonMention(mention: $0) }
-        } ?? []
-    }
-}
-
-extension Mastodon.Entity.Status: MastodonMentionContainer { }
diff --git a/MastodonSDK/Sources/MastodonSDK/Entity/Mastodon+Entity+Status.swift b/MastodonSDK/Sources/MastodonSDK/Entity/Mastodon+Entity+Status.swift
index 5262bfef0..cf401e960 100644
--- a/MastodonSDK/Sources/MastodonSDK/Entity/Mastodon+Entity+Status.swift
+++ b/MastodonSDK/Sources/MastodonSDK/Entity/Mastodon+Entity+Status.swift
@@ -36,7 +36,7 @@ extension Mastodon.Entity {
         public let application: Application?
         
         // Rendering
-        public let mentions: [Mention]?
+        public let mentions: [Mention]
         public let tags: [Tag]
         public let emojis: [Emoji]
         
diff --git a/MastodonSDK/Sources/MastodonUI/Scene/ComposeContent/ComposeContentViewModel.swift b/MastodonSDK/Sources/MastodonUI/Scene/ComposeContent/ComposeContentViewModel.swift
index a01cfa0cf..325cbc955 100644
--- a/MastodonSDK/Sources/MastodonUI/Scene/ComposeContent/ComposeContentViewModel.swift
+++ b/MastodonSDK/Sources/MastodonUI/Scene/ComposeContent/ComposeContentViewModel.swift
@@ -193,34 +193,31 @@ public final class ComposeContentViewModel: NSObject, ObservableObject {
         let initialContentWithSpace = initialContent.isEmpty ? "" : initialContent + " "
         switch destination {
         case .reply(let record):
-            context.managedObjectContext.performAndWait {
-                let status = record.entity
-                let author = authContext.mastodonAuthenticationBox.authentication.account()
-
-                var mentionAccts: [String] = []
-                if author?.id != status.account.id {
-                    mentionAccts.append("@" + status.account.acct)
-                }
-                let mentions = status.mentions ?? []
-                    .filter { author?.id != $0.id }
-                for mention in mentions {
-                    let acct = "@" + mention.acct
-                    guard !mentionAccts.contains(acct) else { continue }
-                    mentionAccts.append(acct)
-                }
-                for acct in mentionAccts {
-                    UITextChecker.learnWord(acct)
-                }
-                if let spoilerText = status.spoilerText, !spoilerText.isEmpty {
-                    self.isContentWarningActive = true
-                    self.contentWarning = spoilerText
-                }
-
-                let initialComposeContent = mentionAccts.joined(separator: " ")
-                let preInsertedContent = initialComposeContent.isEmpty ? "" : initialComposeContent + " "
-                self.initialContent = preInsertedContent + initialContentWithSpace
-                self.content = preInsertedContent + initialContentWithSpace
+            let status = record.entity
+            let author = authContext.mastodonAuthenticationBox.authentication.account()
+            
+            var mentionAccts: [String] = []
+            if author?.id != status.account.id {
+                mentionAccts.append("@" + status.account.acct)
             }
+            let mentions = status.mentions.filter { author?.id != $0.id }
+            for mention in mentions {
+                let acct = "@" + mention.acct
+                guard !mentionAccts.contains(acct) else { continue }
+                mentionAccts.append(acct)
+            }
+            for acct in mentionAccts {
+                UITextChecker.learnWord(acct)
+            }
+            if let spoilerText = status.spoilerText, !spoilerText.isEmpty {
+                self.isContentWarningActive = true
+                self.contentWarning = spoilerText
+            }
+            
+            let initialComposeContent = mentionAccts.joined(separator: " ")
+            let preInsertedContent = initialComposeContent.isEmpty ? "" : initialComposeContent + " "
+            self.initialContent = preInsertedContent + initialContentWithSpace
+            self.content = preInsertedContent + initialContentWithSpace
         case .topLevel:
             self.initialContent = initialContentWithSpace
             self.content = initialContentWithSpace