Michael Sprague

This seems like an issue on [render](https://github.com/googlemaps/js-markerclusterer/blob/main/src/markerclusterer.ts#L171). It is guarding with `map.getProjection()` but then sending `this.getProjection()` to the algorithm. Meaning the parent overlay hasn't yet been given the projection.

I blocked my `render()` on `clusterer.getProjection()`. You just have to remember to set `noDraw` to true when you add markers. Oh and if it fails you might not render, so...