Multiselect in later search result pages does not stay on page after adding to anthology

[SteveMarvin]

if I use multiselect to add several docs to an anth, it takes me to the anth page, and does not keep me on the later page of search results

[stale[bot]]

This issue has been automatically marked as stale because it has not had recent activity. It will be closed if no further activity occurs. Thank you for your contributions.

[camdendotlol]

Fixed in #423