Steps to reproduce:
We've discovered this bug using the LTI interface, but it's likely to manifest in other scenarios as well, since the pager code is used in other places.
1. Create a course in your LMS that contains more than one series.
2. Setup the MH permissions so that the users allowed in the course are allowed in both series (i.e. if the course ID is 12345, then both series should allow read access to the role12345_Learner at least).
3. Make sure that (at least) one of the series contains more than 10 videos, so that the results will take more than one page. (see attached image 1st_page.png).
4. Click "Next" or the page number links to go to a different page.
The next page shows the videos from both series, not just for the series that was displayed in page one (see 2nd_page.png).
Only the videos belonging to the series being explored should be displayed.
Workaround (if any):