When Unity restarts the serialized field is null, not empty, which can lead to CurrentDirectory being set to .

Author: shana

src/UnityExtension/Assets/Editor/GitHub.Unity/ApplicationCache.cs

@@ -57,7 +57,7 @@ public IEnvironment Environment
                         unityVersion = Application.unityVersion;
                     }
                     environment.Initialize(unityVersion, extensionInstallPath.ToNPath(), unityApplication.ToNPath(), unityAssetsPath.ToNPath());
-                    environment.InitializeRepository(repositoryPath != null ? repositoryPath.ToNPath() : null);
+                    environment.InitializeRepository(!String.IsNullOrEmpty(repositoryPath) ? repositoryPath.ToNPath() : null);
                     Flush();
                 }
                 return environment;