chore(fileindex): strip upstream references from code comments

helm/Chart.yaml

@@ -2,8 +2,8 @@ apiVersion: v2
 name: yarilo
 description: Production-grade IMAP/POP3/Submission mail server
 type: application
-version: 2.0.17
-appVersion: "2.1.11"
+version: 2.0.18
+appVersion: "2.1.12"
 keywords:
   - imap
   - submission

internal/storage/index/file/file.go

@@ -354,8 +354,8 @@ func (u *userIndex) compactLogIfNeeded(fs *folderState) {
 	// last reload — that header could be stale (lower NextUID) and would regress
 	// the folder's UID counter. Under the distributed mailbox lock this must not
 	// happen; if the invariant is ever broken, bail and let the next reload
-	// reconcile from the rewritten base instead. Mirrors Dovecot re-fetching the
-	// index header after a log rotation rather than trusting the earlier one.
+	// reconcile from the rewritten base instead — re-fetching the index header
+	// after a log rotation rather than trusting an earlier snapshot of it.
 	if fs.logFileReplaced() {
 		slog.Warn("fileindex: skipping compaction, .log replaced since reload", "folder", fs.folder)
 		fs.closeFDs()

internal/storage/index/file/folder.go

@@ -461,9 +461,9 @@ func (fs *folderState) reload() error {
 	baseStat, baseErr := os.Stat(fs.indexPath)
 
 	// Stat the .log by PATH so a replacement is detected by file IDENTITY, not
-	// merely mtime+size — mirroring Dovecot's mail_index_should_recreate
-	// inode+device check. Another process's compaction replaces the log via
-	// truncateLog's .tmp+rename (new inode); a cached fs.logFD left pointing at
+	// merely mtime+size — an inode+device identity check. Another process's
+	// compaction replaces the log via truncateLog's .tmp+rename (new inode); a
+	// cached fs.logFD left pointing at
 	// the old, now-unlinked inode would otherwise fstat a stale size AND keep
 	// absorbing our own appends into a file nobody else sees, so this session
 	// would flush its stale (lower) header as ground truth and regress the