### 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)

text_is_constructor = !text_is_constructor;
	if (text_is_constructor) {
		text_type->set_text("");
#ifdef TOOLS_ENABLED
		text_type->set_icon(get_editor_theme_icon(SNAME("Script")));
#endif
		c_text->set_editable(false);
		c_text->set_tooltip_text(RTR("Copy this constructor in a script."));
	} else {
		text_type->set_text("#");
		text_type->set_icon(nullptr);
		c_text->set_editable(true);
		c_text->set_tooltip_text(RTR("Enter a hex code (\"#ff0000\") or named color (\"red\")."));
	}
	_update_color();
}
Color ColorPicker::get_pick_color() const {