ResourceLoader
: Fixup management of thread-specific status
#93928
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UPDATE: The effect of this is that external resources that could be successfully loaded have their deferred setup calls run regardless the load will be reported as failed. This is important because if another simultaneous load will get them from cache while they still exist, they will be guaranteedly "complete." Moreover, such behavior was also the case before those calls were flushed in loader threads. Formerly, they were flushed on the main thread so if some resource would survive an overall failed load, they'd still get that "completeness" guarantee.