Steps to reproduce:
- As admin go to the site home and turn editing on.
- Add a Tags block to the page via the 'Add a block' link.
- Click on any tag in the Tags block. (If there are no tags available, add a tag to an item on the site or add a tag to the default collection via 'Manage tags' in the Site administration.)
- On the tag page, add the Flickr block via the 'Add a block' link.
- Edit the Flickr block configuration and fiddle with the number of pictures
Below is an explanatory screenshot showing different values and coresponding results