From faee1d5a8d611b202a49c76435967f5d30880a42 Mon Sep 17 00:00:00 2001
From: Jakob Borg <jakob@kastelo.net>
Date: Thu, 17 Nov 2016 08:50:24 +0000
Subject: [PATCH] lib/model: Fix locking around introduction handling (fixes
 #3737)

GitHub-Pull-Request: https://github.com/syncthing/syncthing/pull/3738
---
 lib/model/model.go | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/lib/model/model.go b/lib/model/model.go
index 9927fec8b..4a71e3ea8 100644
--- a/lib/model/model.go
+++ b/lib/model/model.go
@@ -857,7 +857,6 @@ func (m *Model) ClusterConfig(deviceID protocol.DeviceID, cm protocol.ClusterCon
 
 		go sendIndexes(conn, folder.ID, fs, m.folderIgnores[folder.ID], startSequence, dbLocation)
 	}
-	m.fmut.Unlock()
 
 	// This breaks if we send multiple CM messages during the same connection.
 	if len(tempIndexFolders) > 0 {
@@ -883,6 +882,7 @@ func (m *Model) ClusterConfig(deviceID protocol.DeviceID, cm protocol.ClusterCon
 			changed = true
 		}
 	}
+	m.fmut.Unlock()
 
 	if changed {
 		if err := m.cfg.Save(); err != nil {