Fixed null reference bug in CustomFormatter.BaseFormat.
Fixed null reference bug in CustomFormatter.BaseFormat.
yanlinlin82/gurtle,ramkrishanbhatt/gurtle,zephyrer/gurtle,zephyrer/gurtle,yanlinlin82/gurtle,zephyrer/gurtle,yanlinlin82/gurtle,yanlinlin82/gurtle,ramkrishanbhatt/gurtle,ramkrishanbhatt/gurtle