fix a race condition

4 years ago · 68d14709e9
parent 4d65c6c340
commit 68d14709e9
1 changed files with 1 additions and 1 deletions
--- a/Session/Conversations/ConversationVC.swift
+++ b/Session/Conversations/ConversationVC.swift
@ -488,7 +488,7 @@ final class ConversationVC : BaseVC, ConversationViewModelDelegate, OWSConversat
    }
    
    func updateUnreadCountView() {
-        let visibleViewItems = (messagesTableView.indexPathsForVisibleRows ?? []).map { viewItems[$0.row] }
+        let visibleViewItems = (messagesTableView.indexPathsForVisibleRows ?? []).map { viewItems[ifValid: $0.row] }
        for visibleItem in visibleViewItems {
            guard let index = unreadViewItems.firstIndex(where: { $0 === visibleItem }) else { continue }
            unreadViewItems.remove(at: index)