title: iOS Crash Report SKProductsRequest
body: <p>Could someone confirm my thinking that the following crash report would be generated due to <code>SKProductsRequestDelegate</code> still being allocated, yet the code itself not being? i.e. the VC has been closed?</p>
  
  <pre><code>StoreKit: __34-[SKProductsRequest _handleReply:]_block_invoke + 442
  
  Exception Type:  EXC_BAD_ACCESS (SIGSEGV)
  Exception Subtype: KERN_INVALID_ADDRESS at 0x41682340
  Triggered by Thread:  0
  
  Thread 0 Crashed:
  0   libobjc.A.dylib                 0x38d19626 objc_msgSend + 6
  1   StoreKit                        0x30c4784a __34-[SKProductsRequest _handleReply:]_block_invoke + 442
  2   libdispatch.dylib               0x391f7830 _dispatch_call_block_and_release + 8
  3   libdispatch.dylib               0x391f781c _dispatch_client_callout + 20
  4   libdispatch.dylib               0x391fe49a _dispatch_main_queue_callback_4CF$VARIANT$mp + 274
  5   CoreFoundation                  0x2e45f89c __CFRUNLOOP_IS_SERVICING_THE_MAIN_DISPATCH_QUEUE__ + 4
  6   CoreFoundation                  0x2e45e170 __CFRunLoopRun + 1296
  7   CoreFoundation                  0x2e3c8eba CFRunLoopRunSpecific + 518
  8   CoreFoundation                  0x2e3c8c9e CFRunLoopRunInMode + 102
  9   GraphicsServices                0x3332265e GSEventRunModal + 134
  10  UIKit                           0x30d15148 UIApplicationMain + 1132
  11  BaseApp                         0x00035aea 0x2c000 + 39658
  12  libdyld.dylib                   0x3921cab4 start + 0
  </code></pre>
  
  <p>If my thinking is correct, can I resolve this by calling:-</p>
  
  <pre><code>request.delegate = nil;
  [request cancel];
  request = nil;
  </code></pre>
  
  <p>If I am incorrect, could someone shed some more light on this for me?</p>
  
  <p>Thanks.</p>