3 files changed, 13 insertions, 10 deletions
diff --git a/internal/feed/cache/cache.go b/internal/feed/cache/cache.go
index e7fe673..e69e8f3 100644
--- a/internal/feed/cache/cache.go
+++ b/internal/feed/cache/cache.go
@@ -50,7 +50,7 @@ type CachedFeed interface {
 	Feed() *feed.Feed
 }
 
-func cacheForVersion(version Version) (Impl, error) {
+func forVersion(version Version) (Impl, error) {
 	switch version {
 	case v1Version:
 		return newV1Cache(), nil
@@ -124,8 +124,8 @@ func (cache *Cache) Unlock() error {
 	return nil
 }
 
-func newCache() (Cache, error) {
-	cache, err := cacheForVersion(currentVersion)
+func create() (Cache, error) {
+	cache, err := forVersion(currentVersion)
 	if err != nil {
 		return Cache{}, err
 	}
@@ -135,12 +135,12 @@ func newCache() (Cache, error) {
 	}, nil
 }
 
-func LoadCache(fileName string) (Cache, error) {
+func Load(fileName string) (Cache, error) {
 	f, err := os.Open(fileName)
 	if err != nil {
 		if errors.Is(err, os.ErrNotExist) {
 			// no cache there yet -- make new
-			return newCache()
+			return create()
 		}
 		return Cache{}, fmt.Errorf("opening cache at '%s': %w", fileName, err)
 	}
@@ -159,7 +159,7 @@ func LoadCache(fileName string) (Cache, error) {
 		return Cache{}, fmt.Errorf("reading from '%s': %w", fileName, err)
 	}
 
-	cache, err := cacheForVersion(Version(version))
+	cache, err := forVersion(Version(version))
 	if err != nil {
 		return Cache{}, err
 	}
diff --git a/internal/feed/cache/cache_v1.go b/internal/feed/cache/cache_v1.go
index d754b00..439846f 100644
--- a/internal/feed/cache/cache_v1.go
+++ b/internal/feed/cache/cache_v1.go
@@ -208,7 +208,7 @@ func (cache *v1Cache) cachedFeed(f *feed.Feed) CachedFeed {
 	return cf
 }
 
-func newCachedItem(item *feed.Item) cachedItem {
+func (cf *cachedFeed) cachedItem(item *feed.Item) cachedItem {
 	var ci cachedItem
 
 	ci.ID = item.ID
@@ -245,8 +245,11 @@ func (cf *cachedFeed) Filter(items []feed.Item, ignoreHash, alwaysNew bool) []fe
 
 	cacheItems := make(map[cachedItem]*feed.Item, len(items))
 	for idx := range items {
+		i := &items[idx]
+		ci := cf.cachedItem(i)
+
 		// remove complete duplicates on the go
-		cacheItems[newCachedItem(&items[idx])] = &items[idx]
+		cacheItems[ci] = i
 	}
 	log.Debugf("%d items after deduplication", len(cacheItems))
 
diff --git a/internal/feed/cache/state.go b/internal/feed/cache/state.go
index c2e7de8..1c911d7 100644
--- a/internal/feed/cache/state.go
+++ b/internal/feed/cache/state.go
@@ -43,9 +43,9 @@ func (state *State) LoadCache(fileName string, forceNew bool) error {
 	)
 
 	if forceNew {
-		cache, err = newCache()
+		cache, err = create()
 	} else {
-		cache, err = LoadCache(fileName)
+		cache, err = Load(fileName)
 	}
 
 	if err != nil {