Classhelper count display stuck when opening popup second time.

[rouilj]

I am using the superseder popup with page size set to 50. When I have a fresh page and I click
on the classhelper link, I see:

if I page forward a coupe of pages, I see:

everything is fine. If I cancel/apply or exit using the window [x] button and then reopen the popup I see:

note the count display is at 101..150 but the items shown match the first image where I was at 1..50.
So it looks like the counter is not reset in openPopUp.

[rouilj]

It looks like props.pageIndex in openPopUp() has the same value as when it was closed, but the prevPageURL/nextPageURL are reset. Probably setting props.pageIndex = 1 inside openPopUp() will do the trick.