Pagination: use setCurrentValue when reassigning input value (#11608)

* Pagination:  input bug

currentValue in input component's data object didn't refresh when changeHandle emited

* Update pagination.js

packages/pagination/src/pagination.js

@@ -253,15 +253,16 @@ export default {
           const num = parseInt(value, 10);
           if (!isNaN(num)) {
             if (num < 1) {
-              this.$refs.input.$el.querySelector('input').value = 1;
+              this.$refs.input.setCurrentValue(1);
             } else {
               this.reassignMaxValue(value);
             }
           }
         },
         reassignMaxValue(value) {
-          if (+value > this.$parent.internalPageCount) {
-            this.$refs.input.$el.querySelector('input').value = this.$parent.internalPageCount;
+          var internalPageCount = this.$parent.internalPageCount;
+          if (+value > internalPageCount) {
+            this.$refs.input.setCurrentValue(internalPageCount);
           }
         }
       },