mapboxgl.Marker undefined if togglePopup() when initialising Marker

[Utzel-Butzel]

When creating a new marker and setting up a popup which will be immediately enabled via togglePopup() the created marker returns undefined.

based on the Custom Marker Icons demo

var markerEl = new mapboxgl.Marker(el)
.setLngLat(marker.geometry.coordinates)
.setPopup(popup)
.addTo(map)
.togglePopup();
 console.log(markerEl);

mapbox-gl-js version:
v0.37.0

Steps to Trigger Behavior

1. Creating the marker
2. Console output

Expected Behavior

Return the var markerEl

Actual Behavior

returns undefined if .togglePopup() set otherwise it returns the correct element

[mollymerp]

@Utzel-Butzel thanks for the report. You're right, the documentation does say that Marker#togglePopup should return the Marker element, and right now it's returning nothing.