Provide shouldRefetch option to prevent refetching of static queries

Author: Floriferous

lib/withStaticQuery.js

@@ -16,7 +16,14 @@ export default function withStaticQueryContainer(config) {
 
             componentWillReceiveProps(nextProps) {
                 const { query } = nextProps;
-                this.fetch(query);
+                
+                if (config.shouldRefetch && config.shouldRefetch(nextProps)) {
+                    this.fetch(query);
+                }
+                
+                if (!config.shouldRefetch) {
+                    this.fetch(query);
+                }
             }
 
             componentDidMount() {