From 4249ab30ca415a422915a717e2486939c217efed Mon Sep 17 00:00:00 2001
From: Shadowfacts <me@shadowfacts.net>
Date: Wed, 21 Aug 2024 14:10:59 -0400
Subject: [PATCH] Fix crash when hashtag search results include duplicate

---
 Tusker/Screens/Search/SearchResultsViewController.swift | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/Tusker/Screens/Search/SearchResultsViewController.swift b/Tusker/Screens/Search/SearchResultsViewController.swift
index 9d22138afb..3c09653850 100644
--- a/Tusker/Screens/Search/SearchResultsViewController.swift
+++ b/Tusker/Screens/Search/SearchResultsViewController.swift
@@ -295,7 +295,10 @@ class SearchResultsViewController: UIViewController, CollectionViewController {
         }
         if !results.hashtags.isEmpty && resultTypes.contains(.hashtags) {
             snapshot.appendSections([.hashtags])
-            snapshot.appendItems(results.hashtags.map { .hashtag($0) }, toSection: .hashtags)
+            // mastodon sometimes includes duplicate hashtags with the same name but different urls
+            // (e.g., containing %C3%B8 vs o)
+            let uniqueHashtags = results.hashtags.uniques(by: \.name)
+            snapshot.appendItems(uniqueHashtags.map { .hashtag($0) }, toSection: .hashtags)
         }
         if !results.statuses.isEmpty && resultTypes.contains(.statuses) {
             snapshot.appendSections([.statuses])