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Race condition 2 rate limit bypass #209

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Kindly replicate this code on password reset to fix the rate-limit bypass using race condition.

import threading
import time

mutex = threading.Lock() # is equal to threading.Semaphore(1)

def fun1():
while True:
mutex.acquire()
print(1)
mutex.release()
time.sleep(.5)

def fun2():
while True:
mutex.acquire()
print(2)
mutex.release()
time.sleep(.5)

t1 = threading.Thread(target=fun1).start()
t2 = threading.Thread(target=fun2).start()

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