update version 1.2.3

package.json

 {
   "name": "zm-face-counter",
-  "version": "1.2.2",
+  "version": "1.2.3",
   "private": true,
   "scripts": {
     "android": "react-native run-android",

src/pages/FacePage.js

@@ -179,7 +179,7 @@ class FacePage extends Component {
   };
 
   doorOpen = ({action, sense}) => {
-    this.action = action;
+    if (action) this.action = action;
     if (!this.sense && sense) this.sense = sense;
     if (action === '进店') this.action = 'leave';
     else if (action === '出店') this.action = 'enter';