### Godot version

4.0.2

### System information

Windows 10,Radeon RX 550/550 Series,23.3.2,Vulkan

### Issue description

After Switching to the animations tabs and pressing the key symbol because I wanted to know what it does, Godot crashes

### Steps to reproduce

Go into a project 
Switch to the Animations Tab, make sure no animation is active 
And then press on the key symbol

here is a video demonstrating the bug

https://user-images.githubusercontent.com/59411880/233839816-5489899e-828f-4ac9-9de3-7914f727f754.mp4



### Minimal reproduction project

The File
[package.zip](https://github.com/godotengine/godot/files/11303712/package.zip)

} else {
						grid_color = cell % primary_grid_steps == 0 ? primary_grid_color : secondary_grid_color;
					}
					viewport->draw_line(Point2(i, 0), Point2(i, viewport_size.height), grid_color, Math::round(EDSCALE));
				}
				last_cell = cell;
			}
		}
		if (grid_step.y != 0) {
			for (int i = 0; i < viewport_size.height; i++) {
				const int cell =
						Math::fast_ftoi(Math::floor((xform.xform(Vector2(0, i)).y - real_grid_offset.y) / (grid_step.y * Math::pow(2.0, grid_step_multiplier))));
				if (i == 0) {
					last_cell = cell;
				}
				if (last_cell != cell) {
					Color grid_color;
					if (primary_grid_steps == 0) {
						grid_color = secondary_grid_color;
					} else {
						grid_color = cell % primary_grid_steps == 0 ? primary_grid_color : secondary_grid_color;
					}
					viewport->draw_line(Point2(0, i), Point2(viewport_size.width, i), grid_color, Math::round(EDSCALE));
				}
				last_cell = cell;
			}
		}
	}
}
void CanvasItemEditor::_draw_ruler_tool() {