### 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)

return presets_visible;
}
void ColorPicker::set_modes_visible(bool p_visible) {
	if (color_modes_visible == p_visible) {
		return;
	}
	color_modes_visible = p_visible;
	mode_hbc->set_visible(p_visible);
}
bool ColorPicker::are_modes_visible() const {
	return color_modes_visible;
}
void ColorPicker::set_sampler_visible(bool p_visible) {
	if (sampler_visible == p_visible) {
		return;
	}
	sampler_visible = p_visible;
	sample_hbc->set_visible(p_visible);
}
bool ColorPicker::is_sampler_visible() const {
	return sampler_visible;
}
void ColorPicker::set_sliders_visible(bool p_visible) {
	if (sliders_visible == p_visible) {
		return;
	}
	sliders_visible = p_visible;
	slider_gc->set_visible(p_visible);
}
bool ColorPicker::are_sliders_visible() const {