7ea9ebc55a
Re-scheduled req_app_link structures should have use_count exactly equal to the number of references from the application and port list. However, there's one extra usage decrement that occurs after the req_app_link is created because the use_count is initialised as 1. This patch removes all excess instances of the usage decrement that caused preliminary req_app_link release and router process crash. To reproduce the issue need to cause request rescheduling between 2 app processes. This issue was introduced in 61e9f23a566d.
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