diff --git a/External/Pearl b/External/Pearl
index c627df26..58b820f8 160000
--- a/External/Pearl
+++ b/External/Pearl
@@ -1 +1 @@
-Subproject commit c627df26355c02ee22fabdff2ff132d01b63d105
+Subproject commit 58b820f8d54a796aa79c3d130231c5e764c33c6d
diff --git a/MasterPassword/ObjC/iOS/MPPasswordsViewController.m b/MasterPassword/ObjC/iOS/MPPasswordsViewController.m
index 4751c9e4..fb776cee 100644
--- a/MasterPassword/ObjC/iOS/MPPasswordsViewController.m
+++ b/MasterPassword/ObjC/iOS/MPPasswordsViewController.m
@@ -370,7 +370,10 @@ referenceSizeForHeaderInSection:(NSInteger)section {
     }
 
     [self.fetchedResultsController.managedObjectContext performBlock:^{
-        NSArray *oldSections = [self.fetchedResultsController sections];
+        NSArray *oldSectionInfos = [self.fetchedResultsController sections];
+        NSMutableArray *oldSections = [[NSMutableArray alloc] initWithCapacity:[oldSectionInfos count]];
+        for (id<NSFetchedResultsSectionInfo> sectionInfo in oldSectionInfos)
+            [oldSections addObject:[sectionInfo.objects copy]];
 
         NSError *error = nil;
         self.fetchedResultsController.fetchRequest.predicate =
@@ -391,7 +394,7 @@ referenceSizeForHeaderInSection:(NSInteger)section {
                 else if (section >= toSections)
                     [self.passwordCollectionView deleteSections:[NSIndexSet indexSetWithIndex:section]];
                 else
-                    [self.passwordCollectionView reloadItemsFromArray:[oldSections[section] objects]
+                    [self.passwordCollectionView reloadItemsFromArray:oldSections[section]
                                                               toArray:[[self.fetchedResultsController sections][section] objects]
                                                             inSection:section];
             }
diff --git a/MasterPassword/ObjC/iOS/MasterPassword-iOS.xcodeproj/project.pbxproj b/MasterPassword/ObjC/iOS/MasterPassword-iOS.xcodeproj/project.pbxproj
index febc1803..ce68ff96 100644
--- a/MasterPassword/ObjC/iOS/MasterPassword-iOS.xcodeproj/project.pbxproj
+++ b/MasterPassword/ObjC/iOS/MasterPassword-iOS.xcodeproj/project.pbxproj
@@ -3564,7 +3564,7 @@
 					Reveal,
 				);
 				PROVISIONING_PROFILE = "";
-				"PROVISIONING_PROFILE[sdk=iphoneos*]" = "94333D7F-68F7-473D-B3B1-86AA41F33449";
+				"PROVISIONING_PROFILE[sdk=iphoneos*]" = "78fbee53-abe7-4a47-b917-c223df3a6952";
 				SKIP_INSTALL = NO;
 				TARGETED_DEVICE_FAMILY = 1;
 			};
@@ -3592,7 +3592,7 @@
 					"/Users/lhunath/Documents/workspace/lyndir/MasterPassword/External/Pearl/Pearl-Crypto/lib",
 				);
 				PROVISIONING_PROFILE = "";
-				"PROVISIONING_PROFILE[sdk=iphoneos*]" = "923E2981-1F88-4F05-9408-9EC085C53225";
+				"PROVISIONING_PROFILE[sdk=iphoneos*]" = "7142c408-252a-43c0-94c6-1ae1f43173f4";
 				SKIP_INSTALL = NO;
 				STRIP_INSTALLED_PRODUCT = YES;
 				TARGETED_DEVICE_FAMILY = 1;
@@ -3701,7 +3701,7 @@
 					"/Users/lhunath/Documents/workspace/lyndir/MasterPassword/External/Pearl/Pearl-Crypto/lib",
 				);
 				PROVISIONING_PROFILE = "";
-				"PROVISIONING_PROFILE[sdk=iphoneos*]" = "36641E9D-D5E0-4E80-94F4-B2CF898CFE10";
+				"PROVISIONING_PROFILE[sdk=iphoneos*]" = "48f9bae8-b80e-41c7-8792-663102bed54f";
 				SKIP_INSTALL = NO;
 				STRIP_INSTALLED_PRODUCT = YES;
 				TARGETED_DEVICE_FAMILY = 1;