DateTimeOffset? is evaluted locally since EFCore 2.2.0 #14333

After updating to ef core alle queries with Nullable DateTimeOffset are translated to locally quries. In older version 2.1.x everything was ok.

Steps to reproduce

Here is an example how to get a locally evaluted query.

2019/01/06 11:19:57.106 | Warn | The LINQ expression 'where (([x].EndDate == null) OrElse (Convert([x].EndDate, DateTimeOffset) >= __now_0))' could not be translated and will be evaluated locally.
2019/01/06 11:19:57.106 | Warn | The LINQ expression 'FirstOrDefault()' could not be translated and will be evaluated locally.

public async Task<bool> HasActiveNotification() {
            using (var ctx = PersistenceContextFactory.CreateContext()) {
                var now = DateTimeOffset.Now;

                var notificationEntity = await ctx.Set<NotificationEntity>()
                    .Where(x => x.Active && (x.EndDate.Value == null || x.EndDate.Value >= now)).AsNoTracking().FirstOrDefaultAsync()
                    .ConfigureAwait(false);

                return notificationEntity != null;
            }
        }

Further technical details

EF Core version: 2.2.0
Database Provider: SQLite
Operating system: Xamarin.Forms
IDE: Visual Studio 2017 15.9.4