fix markers rerender when click to open InfoWindow

dist/components/Marker.js

@@ -135,7 +135,7 @@
     }, {
       key: 'componentDidUpdate',
       value: function componentDidUpdate(prevProps) {
-        if (this.props.map !== prevProps.map || this.props.position !== prevProps.position || this.props.icon !== prevProps.icon) {
+        if (this.props.map !== prevProps.map || (this.props.position && prevProps.position ? this.props.position.lat !== prevProps.position.lat || this.props.position.lng !== prevProps.position.lng : this.props.position !== prevProps.position) || this.props.icon !== prevProps.icon) {
           if (this.marker) {
             this.marker.setMap(null);
           }

src/components/Marker.js

@@ -2,6 +2,7 @@ import React from 'react'
 import PropTypes from 'prop-types'
 
 import { camelize } from '../lib/String'
+import { verifyMarkerPosition } from '../lib/verifyMarkerPosition'
 
 const evtNames = [
   'click',
@@ -35,9 +36,9 @@ export class Marker extends React.Component {
   }
 
   componentDidUpdate(prevProps) {
-    if ((this.props.map !== prevProps.map) ||
-      (this.props.position !== prevProps.position) ||
-      (this.props.icon !== prevProps.icon)) {
+    if (this.props.map !== prevProps.map ||
+      this.props.icon !== prevProps.icon ||
+      verifyMarkerPosition(this.props.position, prevProps.position)) {
         if (this.marker) {
             this.marker.setMap(null);
         }

src/lib/verifyMarkerPosition.js

@@ -0,0 +1,6 @@
+export function verifyMarkerPosition(currentPosition, prevPosition) {
+   if(currentPosition && prevPosition) {
+    return currentPosition.lat !== prevPosition.lat || currentPosition.lng !== prevPosition.lng;
+   } 
+   return false;
+}