### Godot version

v4.3.dev.custom_build [d76c1d0e5]

### System information

Linux

### Issue description

When opening the color picker by clicking on a color property the color changes slightly.

### Steps to reproduce

* Click on a property with value `Color(.5, .5, .5) ` in the inspector
* Click away
* Open the color picker again
* See the color change to Color(0.502, 0.502, 0.502) in the "RAW" tab

### Minimal reproduction project

[ColorChangeBug.zip](https://github.com/godotengine/godot/files/13545089/ColorChangeBug.zip)

case SHAPE_HSV_WHEEL: {
				points.resize(4);
				colors.resize(4);
				colors2.resize(4);
				real_t ring_radius_x = Math_SQRT12 * c->get_size().width * 0.42;
				real_t ring_radius_y = Math_SQRT12 * c->get_size().height * 0.42;
				points.set(0, center - Vector2(ring_radius_x, ring_radius_y));
				points.set(1, center + Vector2(ring_radius_x, -ring_radius_y));
				points.set(2, center + Vector2(ring_radius_x, ring_radius_y));
				points.set(3, center + Vector2(-ring_radius_x, ring_radius_y));
				colors.set(0, Color(1, 1, 1, 1));
				colors.set(1, Color(1, 1, 1, 1));
				colors.set(2, Color(0, 0, 0, 1));
				colors.set(3, Color(0, 0, 0, 1));
				c->draw_polygon(points, colors);
				col.set_hsv(h, 1, 1);
				col.a = 0;
				colors2.set(0, col);
				col.a = 1;
				colors2.set(1, col);
				col.set_hsv(h, 1, 0);
				colors2.set(2, col);
				col.a = 0;
				colors2.set(3, col);
				c->draw_polygon(points, colors2);
				break;
			}
			case SHAPE_HSV_RECTANGLE: {
				points.resize(4);
				colors.resize(4);