Fix unnecessary refresh

Author: Akryum

package.json

@@ -1,6 +1,6 @@
 {
   "name": "vue-apollo",
-  "version": "1.2.1",
+  "version": "1.2.2",
   "description": "Vue apollo integration",
   "main": "index.js",
   "scripts": {

src/smart-apollo.js

@@ -12,12 +12,11 @@ class SmartApollo {
 
     // Query callback
     if (typeof this.options.query === 'function') {
-      const queryCb = this.options.query
-      this.vm.$watch(queryCb.bind(this.vm), query => {
+      const queryCb = this.options.query.bind(this.vm)
+      this.options.query = queryCb()
+      this.vm.$watch(queryCb, query => {
         this.options.query = query
         this.refresh()
-      }, {
-        immediate: true,
       })
     }