Users: Remove duplicate query generation from `count_many_users_posts… #48917

Job	Run time
Coding standards / JavaScript checks	1m 14s
Coding standards / PHP checks	27s
Slack Notifications / Prepare notifications	6s
Slack Notifications / Success notifications	4s
Slack Notifications / Failure notifications	0s
Slack Notifications / Cancelled notifications	0s
Slack Notifications / Fixed notifications	0s
Failed workflow tasks	0s
	1m 51s

Provide feedback