Fixing initialization of event setup point of PR 6030

Small fix to save memory. Initializing event setup pointer once for all
Thanks for the clarification. Does this imply we should revert also commit 078138b30daa90abfea2e7eb7538aed987e9e7e1 from @tlampen in PR #6030 (which, by the way has already been merged) and in all the backport PR #6070 #6072 and #6073?