save: Update the modification time of the buffer only in case of file changes

Author: JoeKar

internal/buffer/save.go

@@ -263,12 +263,6 @@ func (b *Buffer) saveToFile(filename string, withSudo bool, autoSave bool) error
 		}
 	}
 
-	// Update the last time this file was updated after saving
-	defer func() {
-		b.ModTime, _ = util.GetModTime(filename)
-		err = b.Serialize()
-	}()
-
 	filename, err = util.ReplaceHome(filename)
 	if err != nil {
 		return err
@@ -319,6 +313,8 @@ func (b *Buffer) saveToFile(filename string, withSudo bool, autoSave bool) error
 		if errors.Is(err, util.ErrOverwrite) {
 			screen.TermMessage(err)
 			err = errors.Unwrap(err)
+
+			b.UpdateModTime()
 		}
 		return err
 	}
@@ -335,7 +331,10 @@ func (b *Buffer) saveToFile(filename string, withSudo bool, autoSave bool) error
 	b.Path = filename
 	b.AbsPath = absFilename
 	b.isModified = false
+	b.UpdateModTime()
 	b.ReloadSettings(true)
+
+	err = b.Serialize()
 	return err
 }