From 69f2eaf2e4fe218eef0a681df93b58804ab4791b Mon Sep 17 00:00:00 2001
From: Till-JS <101404291+Till-JS@users.noreply.github.com>
Date: Sat, 14 Feb 2026 14:30:49 +0100
Subject: [PATCH] =?UTF-8?q?=F0=9F=90=9B=20fix(matrix-bot-common):=20ignore?=
 =?UTF-8?q?=20edit=20events=20to=20prevent=20bot=20duplicate=20responses?=
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When a bot edits its message (like timer updates), other bots were
responding to each edit as if it were a new message. This fix adds
isEditEvent() check to ignore m.replace events.
---
 .../matrix-bot-common/src/base/base-matrix.service.ts  | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/packages/matrix-bot-common/src/base/base-matrix.service.ts b/packages/matrix-bot-common/src/base/base-matrix.service.ts
index 40e12806a..77a3bb3e4 100644
--- a/packages/matrix-bot-common/src/base/base-matrix.service.ts
+++ b/packages/matrix-bot-common/src/base/base-matrix.service.ts
@@ -170,6 +170,13 @@ export abstract class BaseMatrixService implements OnModuleInit, OnModuleDestroy
 		return localpart.includes('-bot') || localpart.endsWith('bot');
 	}
 
+	/**
+	 * Check if event is an edit (message replacement)
+	 */
+	protected isEditEvent(event: MatrixRoomEvent): boolean {
+		return event.content?.['m.relates_to']?.rel_type === 'm.replace';
+	}
+
 	/**
 	 * Handle incoming room message
 	 */
@@ -180,6 +187,9 @@ export abstract class BaseMatrixService implements OnModuleInit, OnModuleDestroy
 		// Ignore messages from other bots to prevent infinite loops
 		if (this.isBot(event.sender)) return;
 
+		// Ignore edit events (message replacements) to prevent duplicate responses
+		if (this.isEditEvent(event)) return;
+
 		// Check room permissions
 		if (this.allowedRooms.length > 0 && !this.allowedRooms.includes(roomId)) {
 			return;