### 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)

if (!_select_from_recent_preset_hbc(p_color)) {
		if (recent_preset_hbc->get_child_count() >= PRESET_COLUMN_COUNT) {
			recent_preset_cache.pop_front();
			recent_presets.pop_front();
			recent_preset_hbc->get_child(PRESET_COLUMN_COUNT - 1)->queue_free();
		}
		recent_presets.push_back(p_color);
		recent_preset_cache.push_back(p_color);
		_add_recent_preset_button(_get_preset_size(), p_color);
	}
	_select_from_preset_container(p_color);
#ifdef TOOLS_ENABLED
	if (editor_settings) {
		PackedColorArray arr_to_save = get_recent_presets();
		editor_settings->call(SNAME("set_project_metadata"), "color_picker", "recent_presets", arr_to_save);
	}
#endif
}
void ColorPicker::erase_preset(const Color &p_color) {