### 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)

ClassDB::bind_method(D_METHOD("set_sliders_visible", "visible"), &ColorPicker::set_sliders_visible);
	ClassDB::bind_method(D_METHOD("are_sliders_visible"), &ColorPicker::are_sliders_visible);
	ClassDB::bind_method(D_METHOD("set_hex_visible", "visible"), &ColorPicker::set_hex_visible);
	ClassDB::bind_method(D_METHOD("is_hex_visible"), &ColorPicker::is_hex_visible);
	ClassDB::bind_method(D_METHOD("add_preset", "color"), &ColorPicker::add_preset);
	ClassDB::bind_method(D_METHOD("erase_preset", "color"), &ColorPicker::erase_preset);
	ClassDB::bind_method(D_METHOD("get_presets"), &ColorPicker::get_presets);
	ClassDB::bind_method(D_METHOD("add_recent_preset", "color"), &ColorPicker::add_recent_preset);
	ClassDB::bind_method(D_METHOD("erase_recent_preset", "color"), &ColorPicker::erase_recent_preset);
	ClassDB::bind_method(D_METHOD("get_recent_presets"), &ColorPicker::get_recent_presets);
	ClassDB::bind_method(D_METHOD("set_picker_shape", "shape"), &ColorPicker::set_picker_shape);
	ClassDB::bind_method(D_METHOD("get_picker_shape"), &ColorPicker::get_picker_shape);
	ADD_PROPERTY(PropertyInfo(Variant::COLOR, "color"), "set_pick_color", "get_pick_color");
	ADD_PROPERTY(PropertyInfo(Variant::BOOL, "edit_alpha"), "set_edit_alpha", "is_editing_alpha");
	ADD_PROPERTY(PropertyInfo(Variant::INT, "color_mode", PROPERTY_HINT_ENUM, "RGB,HSV,RAW,OKHSL"), "set_color_mode", "get_color_mode");
	ADD_PROPERTY(PropertyInfo(Variant::BOOL, "deferred_mode"), "set_deferred_mode", "is_deferred_mode");
	ADD_PROPERTY(PropertyInfo(Variant::INT, "picker_shape", PROPERTY_HINT_ENUM, "HSV Rectangle,HSV Rectangle Wheel,VHS Circle,OKHSL Circle,None"), "set_picker_shape", "get_picker_shape");
	ADD_PROPERTY(PropertyInfo(Variant::BOOL, "can_add_swatches"), "set_can_add_swatches", "are_swatches_enabled");
	ADD_GROUP("Customization", "");
	ADD_PROPERTY(PropertyInfo(Variant::BOOL, "sampler_visible"), "set_sampler_visible", "is_sampler_visible");
	ADD_PROPERTY(PropertyInfo(Variant::BOOL, "color_modes_visible"), "set_modes_visible", "are_modes_visible");
	ADD_PROPERTY(PropertyInfo(Variant::BOOL, "sliders_visible"), "set_sliders_visible", "are_sliders_visible");
	ADD_PROPERTY(PropertyInfo(Variant::BOOL, "hex_visible"), "set_hex_visible", "is_hex_visible");
	ADD_PROPERTY(PropertyInfo(Variant::BOOL, "presets_visible"), "set_presets_visible", "are_presets_visible");
	ADD_SIGNAL(MethodInfo("color_changed", PropertyInfo(Variant::COLOR, "color")));
	ADD_SIGNAL(MethodInfo("preset_added", PropertyInfo(Variant::COLOR, "color")));
	ADD_SIGNAL(MethodInfo("preset_removed", PropertyInfo(Variant::COLOR, "color")));
	BIND_ENUM_CONSTANT(MODE_RGB);
	BIND_ENUM_CONSTANT(MODE_HSV);
	BIND_ENUM_CONSTANT(MODE_RAW);