Issue #3077646 by danflanagan8, kkalashnikov, kaszarobert, priyanka.sahni,...

Issue #3077646 by danflanagan8, kkalashnikov, kaszarobert, priyanka.sahni, Sam152: Increase the delta of the "weight" field to support reordering more than 20 blocks in a section

(cherry picked from commit 74f7e5ac)