diff --git a/src/Umbraco.Core/Persistence/Repositories/RepositoryBase.cs b/src/Umbraco.Core/Persistence/Repositories/RepositoryBase.cs
index 26e97beff7..6a896a54cb 100644
--- a/src/Umbraco.Core/Persistence/Repositories/RepositoryBase.cs
+++ b/src/Umbraco.Core/Persistence/Repositories/RepositoryBase.cs
@@ -55,7 +55,7 @@ namespace Umbraco.Core.Persistence.Repositories
         /// <param name="entity"></param>
         public void AddOrUpdate(TEntity entity)
         {
-            if (!entity.HasIdentity)
+            if (entity.HasIdentity == false)
             {
                 _work.RegisterAdded(entity, this);
             }
@@ -101,7 +101,7 @@ namespace Umbraco.Core.Persistence.Repositories
             {
                 //on initial construction we don't want to have dirty properties tracked
                 // http://issues.umbraco.org/issue/U4-1946
-                TracksChangesEntityBase asEntity = entity as TracksChangesEntityBase;
+                var asEntity = entity as TracksChangesEntityBase;
                 if (asEntity != null)
                 {
                     asEntity.ResetDirtyProperties(false);
@@ -132,13 +132,16 @@ namespace Umbraco.Core.Persistence.Repositories
         {
             if (ids.Any())
             {
-                var entities = _cache.GetByIds(typeof(TEntity), ids.Select(id => id is int ? ConvertIdToGuid(id) : ConvertStringIdToGuid(id.ToString())).ToList());
+                var entities = _cache.GetByIds(
+                    typeof (TEntity), ids.Select(id => id is int ? ConvertIdToGuid(id) : ConvertStringIdToGuid(id.ToString())).ToList())
+                    .ToArray();
+
                 if (ids.Count().Equals(entities.Count()) && entities.Any(x => x == null) == false)
                     return entities.Select(x => (TEntity)x);
             }
             else
             {
-                var allEntities = _cache.GetAllByType(typeof(TEntity));
+                var allEntities = _cache.GetAllByType(typeof (TEntity)).ToArray();
                 
                 if (allEntities.Any())
                 {
@@ -151,7 +154,7 @@ namespace Umbraco.Core.Persistence.Repositories
                 }
             }
 
-            var entityCollection = PerformGetAll(ids);
+            var entityCollection = PerformGetAll(ids).ToArray();
 
             foreach (var entity in entityCollection)
             {
diff --git a/src/Umbraco.Core/Services/MemberService.cs b/src/Umbraco.Core/Services/MemberService.cs
index 5f79cfb03b..35e58a7a3e 100644
--- a/src/Umbraco.Core/Services/MemberService.cs
+++ b/src/Umbraco.Core/Services/MemberService.cs
@@ -676,7 +676,7 @@ namespace Umbraco.Core.Services
         {
             using (var repository = _repositoryFactory.CreateMemberRepository(_uowProvider.GetUnitOfWork()))
             {
-                var query = Query<IMember>.Builder.Where(x => x.Username == userName);
+                var query = Query<IMember>.Builder.Where(x => x.Username.Equals(userName));
                 var member = repository.GetByQuery(query).FirstOrDefault();
 
                 return member;
diff --git a/src/umbraco.cms/businesslogic/member/MemberType.cs b/src/umbraco.cms/businesslogic/member/MemberType.cs
index f9f3c5a45f..e0bcd8bf73 100644
--- a/src/umbraco.cms/businesslogic/member/MemberType.cs
+++ b/src/umbraco.cms/businesslogic/member/MemberType.cs
@@ -217,11 +217,15 @@ namespace umbraco.cms.businesslogic.member
         [MethodImpl(MethodImplOptions.Synchronized)]
         public static MemberType MakeNew(User u, string Text)
         {
+            var alias = helpers.Casing.SafeAliasWithForcingCheck(Text);
+            //special case, if it stars with an underscore, we have to re-add it for member types
+            if (Text.StartsWith("_")) alias = "_" + alias;
             var mt = new Umbraco.Core.Models.MemberType(-1)
             {
                 Level = 1,
                 Name = Text,
-                Icon = "member.gif"
+                Icon = "member.gif",
+                Alias = alias
             };
             ApplicationContext.Current.Services.MemberTypeService.Save(mt);
             var legacy = new MemberType(mt);