[코인][New] 코인 디테일 연속 로딩 방지

app/src/main/java/kr/co/zumo/app/lifeplus/view/screen/my/coin/MyCoinDetailModel.java

@@ -87,6 +87,7 @@ public class MyCoinDetailModel extends Model {
   }
 
   public void loadCoinInfo() {
+    disposeCoin();
     CoinInfoRequestBean requestBean = new CoinInfoRequestBean(periodFrom, periodTo, coinFlag);
     disposableCoin = CoinModelHelper.getInstance().loadCoinInfo(requestBean, new APIModuleListener<CoinInfoResultBean>(waiterCaller) {
       @Override