Fix EXC_BAD_ACCESS crash on iOS in [REAAnimationsManager clearSharedTransitionConfigForTag:]

apple/LayoutReanimation/REAAnimationsManager.m

@@ -19,8 +19,8 @@
     return YES;
   }
 
   for (id<RCTComponent> subview in view.reactSubviews) {
     if (REANodeFind(subview, block)) {
       return YES;
     }
   }
@@ -34,7 +34,7 @@
   NSMutableSet<NSNumber *> *_enteringViews;
   NSMutableDictionary<NSNumber *, REASnapshot *> *_enteringViewTargetValues;
   NSMutableDictionary<NSNumber *, REAUIView *> *_exitingViews;
   NSMutableDictionary<NSNumber *, NSNumber *> *_exitingSubviewsCountMap;
   NSMutableDictionary<NSNumber *, NSNumber *> *_exitingParentTags;
   NSMutableSet<NSNumber *> *_ancestorsToRemove;
   NSMutableArray<NSString *> *_targetKeys;
@@ -45,7 +45,7 @@
   REAAnimationRemovingBlock _clearAnimationConfigForTag;
   REASharedTransitionRemovingBlock _clearSharedTransitionConfigForTag;
   REASharedTransitionManager *_sharedTransitionManager;
 #ifndef NDEBUG
   REACheckDuplicateSharedTagBlock _checkDuplicateSharedTag;
 #endif
 }
@@ -60,12 +60,12 @@
   return _array;
 }
 
 - (instancetype)initWithUIManager:(RCTUIManager *)uiManager
 {
   if (self = [super init]) {
     _uiManager = uiManager;
     _exitingViews = [NSMutableDictionary new];
     _exitingSubviewsCountMap = [NSMutableDictionary new];
     _ancestorsToRemove = [NSMutableSet new];
     _exitingParentTags = [NSMutableDictionary new];
     _enteringViews = [NSMutableSet new];
@@ -77,8 +77,8 @@
       [_targetKeys addObject:[NSString stringWithFormat:@"target%@", [key capitalizedString]]];
       [_currentKeys addObject:[NSString stringWithFormat:@"current%@", [key capitalizedString]]];
     }
     _sharedTransitionManager = [[REASharedTransitionManager alloc] initWithAnimationsManager:self];
     _reaSwizzledUIManager = [[REASwizzledUIManager alloc] initWithUIManager:uiManager withAnimationManager:self];
 
     _startAnimationForTag = ^(NSNumber *tag, LayoutAnimationType type, NSDictionary *yogaValues) {
       // default implementation, this block will be replaced by a setter
@@ -94,6 +94,9 @@
     _clearAnimationConfigForTag = ^(NSNumber *tag) {
       // default implementation, this block will be replaced by a setter
     };
+    _clearSharedTransitionConfigForTag = ^(NSNumber *tag) {
+      // default implementation, this block will be replaced by a setter
+    };
 #ifndef NDEBUG
     _checkDuplicateSharedTag = ^(REAUIView *view, NSNumber *viewTag) {
       // default implementation, this block will be replaced by a setter