NSMutableDictionary+Nil

NSMutableDictionary+Nil

#import <Foundation/Foundation.h>

int main(int argc, const char * argv[]) {
    @autoreleasepool {
        NSString * const mama = @"mama";
        id value = nil;
        
        NSMutableDictionary *dictionary = [NSMutableDictionary new];
        [dictionary setValue:value forKey:mama];
        dictionary[mama] = nil;
        
        // fails
        [dictionary setObject:value forKey:mama];
        
        NSLog(@"%@", dictionary);
    }
    
    return 0;
}