update stateMix

packages/artplayer/src/player/stateMix.js

@@ -7,7 +7,7 @@ export default function stateMix(art) {
         set(name) {
             for (let index = 0; index < states.length; index++) {
                 const prop = states[index];
-                if (prop !== name) {
+                if (prop !== name && art[prop]) {
                     art[prop] = false;
                 }
             }