Add some of the community PR's. Note that due to numerous merge conflicts, etc., I'm adding these

manually, so the actual commits are not part of the git history, unfortunately. However this list
indicates the original PR number and the author.
- Add robotmedia#138 by @protikhonov.
- Add robotmedia#150 by @seantb.
- Add robotmedia#175 by @metasmile

Author: balthisar

RMStore/Optional/RMStoreUserDefaultsPersistence.h

@@ -30,6 +30,10 @@
  */
 - (void)removeTransactions;
 
+/** Remove transactions from user defaults via specific ProductIdentifier.
+ */
+- (void)removeTransactionsForProductIdentifier:(NSString *)productIdentifier;
+
 /** Consume the given product if available. Intended for consumable products.
  @param productIdentifier Identifier of the product to be consumed.
  @return YES if the product was consumed, NO otherwise.
@@ -78,4 +82,4 @@
  */
 - (RMStoreTransaction*)transactionWithData:(NSData*)data;
 
-@end
+@end

RMStore/Optional/RMStoreUserDefaultsPersistence.m

@@ -53,6 +53,16 @@ - (void)removeTransactions
     [defaults synchronize];
 }
 
+- (void)removeTransactionsForProductIdentifier:(NSString *)productIdentifier
+{
+    NSUserDefaults *defaults = [self userDefaults];
+    NSDictionary *purchases = [defaults objectForKey:RMStoreTransactionsUserDefaultsKey] ? : @{};
+    NSMutableDictionary *updatedPurchases = [NSMutableDictionary dictionaryWithDictionary:purchases];
+    [updatedPurchases removeObjectForKey:productIdentifier];
+    [defaults setObject:updatedPurchases forKey:RMStoreTransactionsUserDefaultsKey];
+    [defaults synchronize];
+}
+
 - (BOOL)consumeProductOfIdentifier:(NSString*)productIdentifier
 {
     NSUserDefaults *defaults = [self userDefaults];

RMStore/RMStore.m

@@ -123,17 +123,17 @@ - (NSArray*)rm_transactions {
 
 @interface RMProductsRequestDelegate : NSObject<SKProductsRequestDelegate>
 
-@property (nonatomic, strong) RMSKProductsRequestSuccessBlock successBlock;
-@property (nonatomic, strong) RMSKProductsRequestFailureBlock failureBlock;
+@property (nonatomic, copy) RMSKProductsRequestSuccessBlock successBlock;
+@property (nonatomic, copy) RMSKProductsRequestFailureBlock failureBlock;
 @property (nonatomic, weak) RMStore *store;
 
 @end
 
 @interface RMAddPaymentParameters : NSObject
 
-@property (nonatomic, strong) RMSKPaymentTransactionSuccessBlock deferBlock;
-@property (nonatomic, strong) RMSKPaymentTransactionSuccessBlock successBlock;
-@property (nonatomic, strong) RMSKPaymentTransactionFailureBlock failureBlock;
+@property (nonatomic, copy) RMSKPaymentTransactionSuccessBlock deferBlock;
+@property (nonatomic, copy) RMSKPaymentTransactionSuccessBlock successBlock;
+@property (nonatomic, copy) RMSKPaymentTransactionFailureBlock failureBlock;
 
 @end
 
@@ -160,7 +160,7 @@ @implementation RMStore
 
     NSMutableArray *_storedStorePayments;
 
-    NSInteger _pendingRestoredTransactionsCount;
+    NSMutableSet *_pendingRestoredTransactionIds;
     BOOL _restoredCompletedTransactionsFinished;
 
     SKReceiptRefreshRequest *_refreshReceiptRequest;
@@ -180,6 +180,7 @@ - (instancetype) init
         _productsRequestDelegates = [NSMutableSet set];
         _productsRequests = [NSMutableSet set];
         _restoredTransactions = [NSMutableArray array];
+        _pendingRestoredTransactionIds = [NSMutableSet set];
         _storedStorePayments = [NSMutableArray array];
         [[SKPaymentQueue defaultQueue] addTransactionObserver:self];
     }
@@ -320,7 +321,7 @@ - (void)restoreTransactionsOnSuccess:(void (^)(NSArray *transactions))successBlo
                              failure:(void (^)(NSError *error))failureBlock
 {
     _restoredCompletedTransactionsFinished = NO;
-    _pendingRestoredTransactionsCount = 0;
+    [_pendingRestoredTransactionIds removeAllObjects];
     _restoredTransactions = [NSMutableArray array];
     _restoreTransactionsSuccessBlock = successBlock;
     _restoreTransactionsFailureBlock = failureBlock;
@@ -333,7 +334,7 @@ - (void)restoreTransactionsOfUser:(NSString*)userIdentifier
 {
     NSAssert([[SKPaymentQueue defaultQueue] respondsToSelector:@selector(restoreCompletedTransactionsWithApplicationUsername:)], @"restoreCompletedTransactionsWithApplicationUsername: not supported in this iOS version. Use restoreTransactionsOnSuccess:failure: instead.");
     _restoredCompletedTransactionsFinished = NO;
-    _pendingRestoredTransactionsCount = 0;
+    [_pendingRestoredTransactionIds removeAllObjects];
     _restoreTransactionsSuccessBlock = successBlock;
     _restoreTransactionsFailureBlock = failureBlock;
     [[SKPaymentQueue defaultQueue] restoreCompletedTransactionsWithApplicationUsername:userIdentifier];
@@ -735,9 +736,13 @@ - (void)didFailTransaction:(SKPaymentTransaction *)transaction queue:(SKPaymentQ
 
 - (void)didRestoreTransaction:(SKPaymentTransaction *)transaction queue:(SKPaymentQueue*)queue
 {
-    RMStoreLog(@"transaction restored with product %@", transaction.originalTransaction.payment.productIdentifier);
+    NSString *productIdentifier = transaction.originalTransaction.payment.productIdentifier;
+    RMStoreLog(@"transaction restored with product %@", productIdentifier);
+
+    if(productIdentifier) {
+        [_pendingRestoredTransactionIds addObject:productIdentifier];
+    }
 
-    _pendingRestoredTransactionsCount++;
     if (self.receiptVerifier != nil)
     {
         [self.receiptVerifier verifyTransaction:transaction success:^{
@@ -830,9 +835,10 @@ - (void)notifyRestoreTransactionFinishedIfApplicableAfterTransaction:(SKPaymentT
     if (transaction != nil)
     {
         [_restoredTransactions addObject:transaction];
-        _pendingRestoredTransactionsCount--;
+        [_pendingRestoredTransactionIds removeObject:transaction.payment.productIdentifier];
+
     }
-    if (_restoredCompletedTransactionsFinished && _pendingRestoredTransactionsCount == 0)
+    if (_restoredCompletedTransactionsFinished && _pendingRestoredTransactionIds.count == 0)
     { // Wait until all restored transations have been verified
         NSArray *restoredTransactions = [_restoredTransactions copy];
         if (_restoreTransactionsSuccessBlock != nil)

RMStoreTests/RMProducstRequestDelegateTests.m

@@ -25,8 +25,8 @@
 
 @interface RMProductsRequestDelegate : NSObject<SKProductsRequestDelegate>
 
-@property (nonatomic, strong) RMSKProductsRequestSuccessBlock successBlock;
-@property (nonatomic, strong) RMSKProductsRequestFailureBlock failureBlock;
+@property (nonatomic, copy) RMSKProductsRequestSuccessBlock successBlock;
+@property (nonatomic, copy) RMSKProductsRequestFailureBlock failureBlock;
 @property (nonatomic, weak) RMStore *store;
 
 @end