### Godot version

4.0.stable

### System information

Windows 10, Forward+, GTX 1070 driver 528.49

### Issue description

When trying to edit the handle mode of a bezier cruve key from the inspector tab, the mode doesn't change. It works fine when right clicking on the key and setting the handle mode from here though. 

https://user-images.githubusercontent.com/24484962/222379540-29d71b6d-ff0c-4a21-9905-9750d0581fda.mp4



### Steps to reproduce

On an animation track using a bezier curve, select a key and try to change the handle mode from the inspector tab

### Minimal reproduction project

N/A
track_type = TTR("Position");
						break;
					case Animation::TYPE_ROTATION_3D:
						track_type = TTR("Rotation");
						break;
					case Animation::TYPE_SCALE_3D:
						track_type = TTR("Scale");
						break;
					case Animation::TYPE_BLEND_SHAPE:
						track_type = TTR("BlendShape");
						break;
					case Animation::TYPE_METHOD:
						track_type = TTR("Methods");
						break;
					case Animation::TYPE_BEZIER:
						track_type = TTR("Bezier");
						break;
					case Animation::TYPE_AUDIO:
						track_type = TTR("Audio");
						break;
					default: {
					};
				}
				if (!track_type.is_empty()) {
					text += vformat(" (%s)", track_type);
				}
				TreeItem *it = track_copy_select->create_item(troot);
				it->set_editable(0, true);
				it->set_selectable(0, true);
				it->set_cell_mode(0, TreeItem::CELL_MODE_CHECK);