title: __NSSingleObjectArrayI in Coredata
body: <p>I am working with Coredata. i have an relation with the entity when i fetch my relation it gives the NSSet and i Convert this to NSMutableArray with AllObjects. The issue it gives me __NSSingleObjectArrayI instead of NSMutableArray. Can any one please help me on this. Thanks</p>
  
  <p>Tired Code :-</p>
  
  <pre><code>NSSet *arrPayment = [[[dictPaymentData allValues] valueForKey:@"paymentToInvoice"] valueForKey:@"invoiceToPeople"];
            NSMutableArray *arrData = [NSMutableArray arrayWithArray:[arrPayment allObjects]];
  </code></pre>
  
  <p>This is my __NSSingleObjectArrayI Code :- </p>
  
  <pre><code>&lt;__NSArrayM 0x6000018464f0&gt;(
  &lt;__NSSingleObjectArrayI 0x600000a8bdd0&gt;(
  {(
      &lt;People: 0x600002b44370&gt; (entity: People; id: 0x91782a4d7073f8e8 &lt;x-coredata://0785667E-51C4-4C34-B696-C4374F6315D4/People/p630&gt; ; data: {
      archiveStatus = 0;
      defaultTerms = 30;
      email = nil;
      extra1 = nil;
      extra2 = nil;
      extra3 = nil;
      faxNo = nil;
      firstName = nil;
      from = nil;
      fromid = 0;
      homeNo = nil;
      internalNotes = nil;
      lastName = nil;
      mobileNO = nil;
      modificationDate = "2019-01-17 11:58:50 +0000";
      organization = Yogesh;
      peopleId = 0;
      "sa_City" = nil;
      "sa_Country" = nil;
      "sa_State" = nil;
      "sa_Street1" = nil;
      "sa_Street2" = nil;
      "sa_Zip" = nil;
      selectedCurrency = "en_US";
      signature = nil;
      sortingString = nil;
      status = Cactive;
      syncID = nil;
      uniqueIdentifier = "6A819F69-DCB0-4B6C-BE60-03151B23541D-3341-0000043F5397E622";
      userId = nil;
      vatNo = nil;
  })
  )}
  )
  )
  ,
  </code></pre>