only load non assigned tags

fix custom onClick events

src/elements/Tag/Tag.js

@@ -18,6 +18,11 @@ class Tag extends React.Component {
      * click handling for a Tag
      */
     TagClick() {
+        if (this.props.onclick) {
+            this.props.onclick();
+            return;
+        }
+
         const tag = this.props.children.toString().toLowerCase();
 
         // call callback functin to switch to category page with specified tag

src/elements/Tag/Tag.test.js

@@ -31,4 +31,17 @@ describe('<Tag/>', function () {
 
         expect(func).toBeCalledTimes(1);
     });
+
+    it('test custom onclick function', function () {
+        const func = jest.fn();
+
+        const wrapper = shallow(<Tag
+            onclick={() => {func()}}>test</Tag>);
+
+        expect(func).toBeCalledTimes(0);
+
+        wrapper.simulate("click");
+
+        expect(func).toBeCalledTimes(1);
+    });
 });