Subtype localisation does not appear in tooltips

[maxice8]

types = {
	type[event_modifier] = {
		path = "game/common/event_modifiers"
		
		subtype[not_flag] = {
			## cardinality = 1..inf
			scalar = scalar
		}
		
		localisation = {
			subtype[not_flag] = {
				name = "$"
				description = "desc_$"
			}
		}
	}
}

This occurs anywhere subtypes are used