Call to AXIsProcessTrustedWithOptions does not work after change setting manually

Hello all
I am testing accessibility permissions using AXIsProcessTrustedWithOptions
When app starts value is correctly returned. However if I change the setting in System Preferences -> Security & Privacy while app is running call to API is still returning the previous value.
Is that bug?
Here is example code:

Code Block 
bool checkIfAccessibilityEnabledAndDisplayPopup()
{
  // Method to check if accessibility is enabled
  // Passing YES to kAXTrustedCheckOptionPrompt forces showing popup
  NSDictionary *options = @{(bridge id)kAXTrustedCheckOptionPrompt: @YES};
  Boolean accessibilityEnabled = AXIsProcessTrustedWithOptions((CFDictionaryRef)options);
  return (!!accessibilityEnabled);
}
int main(int argc, const char * argv[]) {
  @autoreleasepool {
    NSLog(@"Starting");
    for (int i=0;i<100;i) {
       checkIfAccessibilityEnabledAndDisplayPopup();
       [NSThread sleepForTimeInterval:20.0f];
       NSDictionary *options = @{(__bridge id)kAXTrustedCheckOptionPrompt: @NO};
       Boolean b = AXIsProcessTrustedWithOptions((CFDictionaryRef)options);
       Boolean b1 = AXIsProcessTrusted();
       NSLog(@"accessibility AXIsProcessTrustedWithOptions--> %d AXIsProcessTrusted ---> %d", b, b1);
    }
}