From f59af0afcfc1d6993f023b00cc8beef354f3b711 Mon Sep 17 00:00:00 2001
From: leo <longshuang@msn.cn>
Date: Sun, 11 Aug 2024 10:13:01 +0800
Subject: [PATCH] enhance: only when the repository has submodules will the
 submodule information be updated at the same time after the branch
 information changes

---
 src/Models/Watcher.cs | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/src/Models/Watcher.cs b/src/Models/Watcher.cs
index 06288630..d10d8670 100644
--- a/src/Models/Watcher.cs
+++ b/src/Models/Watcher.cs
@@ -198,7 +198,12 @@ namespace SourceGit.Models
                 (name.StartsWith("worktrees/", StringComparison.Ordinal) && name.EndsWith("/HEAD", StringComparison.Ordinal)))
             {
                 _updateBranch = DateTime.Now.AddSeconds(.5).ToFileTime();
-                _updateSubmodules = DateTime.Now.AddSeconds(1).ToFileTime();
+                
+                lock (_submodules)
+                {
+                    if (_submodules.Count > 0)
+                        _updateSubmodules = DateTime.Now.AddSeconds(1).ToFileTime();
+                }
             }
             else if (name.StartsWith("objects/", StringComparison.Ordinal) || name.Equals("index", StringComparison.Ordinal))
             {