### 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.
bottom_panel_updating = true;
		for (int i = 0; i < bottom_panel_items.size(); i++) {
			bottom_panel_items[i].button->set_pressed(i == p_idx);
			bottom_panel_items[i].control->set_visible(i == p_idx);
		}
		if (EditorDebuggerNode::get_singleton() == bottom_panel_items[p_idx].control) {
			
			bottom_panel->add_theme_style_override("panel", gui_base->get_theme_stylebox(SNAME("BottomPanelDebuggerOverride"), SNAME("EditorStyles")));
		} else {
			bottom_panel->add_theme_style_override("panel", gui_base->get_theme_stylebox(SNAME("BottomPanel"), SNAME("EditorStyles")));
		}
		center_split->set_dragger_visibility(SplitContainer::DRAGGER_VISIBLE);
		center_split->set_collapsed(false);
		if (bottom_panel_raise->is_pressed()) {
			top_split->hide();
		}
		bottom_panel_raise->show();
	} else {
		bottom_panel->add_theme_style_override("panel", gui_base->get_theme_stylebox(SNAME("BottomPanel"), SNAME("EditorStyles")));
		bottom_panel_items[p_idx].button->set_pressed(false);
		bottom_panel_items[p_idx].control->set_visible(false);
		center_split->set_dragger_visibility(SplitContainer::DRAGGER_HIDDEN);
		center_split->set_collapsed(true);
		bottom_panel_raise->hide();
		if (bottom_panel_raise->is_pressed()) {
			top_split->show();
		}
	}
}
void EditorNode::set_docks_visible(bool p_show) {