From 5aae968610f0af05679380af0f0709b4afebaf12 Mon Sep 17 00:00:00 2001
From: gnezim <gnezim@gmail.com>
Date: Mon, 20 Apr 2026 21:31:45 +0300
Subject: [PATCH] =?UTF-8?q?Clarify=20IOperatingBy.flightNumber=20doc=20?=
 =?UTF-8?q?=E2=80=94=20it=20IS=20used=20for=20code-share=20display?=
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---
 src/features/online-board/types.ts | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/src/features/online-board/types.ts b/src/features/online-board/types.ts
index 6f77abb2..787aa70b 100644
--- a/src/features/online-board/types.ts
+++ b/src/features/online-board/types.ts
@@ -237,7 +237,11 @@ export interface IOperatingBy {
   actual?: string;
   /** @deprecated use `scheduled` / `actual`; retained for old consumers */
   carrier?: string;
-  /** @deprecated code-share flight number; unused in React */
+  /**
+   * Code-share flight number (e.g. "0100"). Used in DetailsHeaderBadge
+   * to render the secondary `KL 1234, AF 5678` line under the primary
+   * flight number for multi-leg flights with different operating carriers.
+   */
   flightNumber?: string;
 }