[Bug 46273] rand() doesn' t get a unique state per-fiber like it appears to on native windows

[wine-bugs at winehq.org]

https://bugs.winehq.org/show_bug.cgi?id=46273

--- Comment #2 from winebz at pengaru.com ---
Created attachment 62984
  --> https://bugs.winehq.org/attachment.cgi?id=62984
rand() from fibers test program

This program creates 100 fibers and waits for their exit.

The fibers all execute the same function, in pseudo-code:
{
        print(rand())
        sleep_schedule_others(1s)
        print(rand())
}

In WINE 1.8.7, I observe all the fibers printing random numbers.

In Win7, I observe 100 of the same random number, a delay, then 100 of another
uniform random number.

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