Method getAllChildMarkers() return only 1 marker when cluster contains 2 child

[kadekval]

How to reproduce

• leaflet version: 1.8.0
• leaflet.markercluster: 1.5.3
• react leaflet: 4.0.0
• react: 18
• OS: Macos Monterey
• browser chrome: 103.0.5060.134

What behaviour I'm expecting and which behaviour I'm seeing

i am creating a cluster with its icon using pie chart, but i found some trouble when the cluster has 2 child, getAllChildMarkers() return only 1 marker when cluster contains 2 child

red line is the cluster has 2 child
green line is the cluster has more than 2 child

Related Codes

I think the problem comes from here

Leaflet.markercluster/src/MarkerClusterGroup.js

Lines 264 to 270 in 31360f2

	//If we just made a cluster of size 2 then we need to remove the other marker from the map (if it is) or we never will
	if (m.__parent) {
	if (m.__parent.getChildCount() === 2) {
	var markers = m.__parent.getAllChildMarkers(),
	otherMarker = markers[0] === m ? markers[1] : markers[0];
	fg.removeLayer(otherMarker);
	}

why should there be a code to remove the marker?