Hooks: Fix pointer over-advance in resort_active_iterations() #34791

Job	Run time
Determine Matrix	3s
Multisite Memcached / Test before	13m 31s
Single Site Memcached / Test before	14m 15s
Multisite Memcached / Test current	14m 17s
Single Site Default / Test current	13m 47s
Multisite Default / Test before	14m 0s
Multisite Default / Test current	14m 2s
Single Site Memcached / Test current	13m 43s
Single Site Default / Test before	14m 18s
Slack Notifications	0s
Compare / Multisite Memcached	12s
Compare / Single Site Memcached	10s
Compare / Single Site Default	10s
Compare / Multisite Default	12s
Failed workflow tasks	0s
	1h 52m 40s

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