`drag` event listeners get lost when changing marker icon during drag

In 1.0.0-beta.2 one could call setIcon() (using a L.divIcon()) on a marker in the drag listener and the listener gets called on each event. A dragend listener also gets called. See http://jsbin.com/jegoqocebu/1/edit?html,js,console,output

In 1.0.0-rc.1 with the same code the listener gets called only on the first drag event (but for each new drag) and the dragend listener doesn’t get called at all. See http://jsbin.com/tudezarose/2/edit?html,js,console,output

Is this related to #4458 and expected?

[zdila]

@FadilEldin because then icon changes on drag end not on drag start.

[jpbecotte]

I had a similar issue and I fixed it by extending DivIcon to handle a setHTML method. Changing the innerHTML of the div without recreating the DivIcon solves the issue.

  const DynDivIcon = L.DivIcon.extend({
    createIcon: function (oldIcon) {
      const div = L.DivIcon.prototype.createIcon.call(this, oldIcon);
      this._div = div;
      return div;
    },

    setHTML(html) {
      this._div.innerHTML = html;
    },
  });

Maybe this setHTML method should be added to DivIcon. If you want me to submit a PR, let me know.