From 00e853339ec6def723a70b79f03f5c5d6f6be43e Mon Sep 17 00:00:00 2001
From: Wojciech Kozlowski <wk@wojciechkozlowski.eu>
Date: Fri, 1 Mar 2024 15:27:59 +0100
Subject: [PATCH] Method doesn't have to take mutable self

---
 src/core/musichoard/musichoard.rs | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/core/musichoard/musichoard.rs b/src/core/musichoard/musichoard.rs
index 06720a7..266502a 100644
--- a/src/core/musichoard/musichoard.rs
+++ b/src/core/musichoard/musichoard.rs
@@ -72,7 +72,7 @@ impl<LIB, DB> MusicHoard<LIB, DB> {
         }
     }
 
-    fn merge_collections(&mut self) -> Collection {
+    fn merge_collections(&self) -> Collection {
         let mut primary = self.library_cache.clone();
         for secondary_artist in self.database_cache.iter().cloned() {
             if let Some(ref mut primary_artist) = primary.get_mut(&secondary_artist.id) {