Fix interpreter fetching for untitled files (#17515)

* Fix interpreter fetching for untitled files

* Just use untitled files

Author: rchiodo

src/client/pythonEnvironments/legacyIOC.ts

@@ -301,7 +301,14 @@ class ComponentAdapter implements IComponentAdapter {
         let wsFolder: vscode.WorkspaceFolder | undefined;
         if (resource !== undefined) {
             wsFolder = vscode.workspace.getWorkspaceFolder(resource);
-        } else if (vscode.workspace.workspaceFolders && vscode.workspace.workspaceFolders.length > 0) {
+        }
+        // Untitled files should still use the workspace as the query location
+        if (
+            !wsFolder &&
+            vscode.workspace.workspaceFolders &&
+            vscode.workspace.workspaceFolders.length > 0 &&
+            (!resource || resource.scheme === 'untitled')
+        ) {
             [wsFolder] = vscode.workspace.workspaceFolders;
         }