### Godot version

4.1.dev (dc625bcbfc5b587ba8867481ee7a1f6a567c25d0)

### System information

Mageia 9, Linux

### Issue description

When importing a project in current `master`, the following error is raised for each asset that gets imported:
```
Attempting to parent and popup a dialog that already has a parent.
```

It seems to be raised once per asset, caused by the progress dialog.

CC @bruvzg

### Steps to reproduce

- Import a new project in Godot that contains importable assets, e.g. https://github.com/RPicster/godot4-demo-desert-light

### Minimal reproduction project

See above.
#include "editor/import/dynamic_font_import_settings.h"
#include "editor/import/editor_import_collada.h"
#include "editor/import/resource_importer_bitmask.h"
#include "editor/import/resource_importer_bmfont.h"
#include "editor/import/resource_importer_csv_translation.h"
#include "editor/import/resource_importer_dynamic_font.h"
#include "editor/import/resource_importer_image.h"
#include "editor/import/resource_importer_imagefont.h"
#include "editor/import/resource_importer_layered_texture.h"
#include "editor/import/resource_importer_obj.h"
#include "editor/import/resource_importer_shader_file.h"
#include "editor/import/resource_importer_texture.h"
#include "editor/import/resource_importer_texture_atlas.h"
#include "editor/import/resource_importer_wav.h"
#include "editor/import/scene_import_settings.h"
#include "editor/import_dock.h"
#include "editor/inspector_dock.h"
#include "editor/multi_node_edit.h"
#include "editor/node_dock.h"
#include "editor/plugin_config_dialog.h"
#include "editor/plugins/animation_player_editor_plugin.h"
#include "editor/plugins/asset_library_editor_plugin.h"
#include "editor/plugins/canvas_item_editor_plugin.h"
#include "editor/plugins/debugger_editor_plugin.h"
#include "editor/plugins/dedicated_server_export_plugin.h"
#include "editor/plugins/editor_preview_plugins.h"
#include "editor/plugins/editor_resource_conversion_plugin.h"
#include "editor/plugins/gdextension_export_plugin.h"
#include "editor/plugins/material_editor_plugin.h"
#include "editor/plugins/mesh_library_editor_plugin.h"