Fix small bug in serializer (credit Geoff Hendrey)
Fix small bug in serializer (credit Geoff Hendrey)

sumit784/mapdb,lamfire/mapdb,mebigfatguy/mapdb,codeaudit/mapdb,mebigfatguy/mapdb,jankotek/mapdb,jankotek/MapDB,cocosli/mapdb,SleimanJneidi/mapdb,ringoluo/mapdb,pettermahlen/mapdb,ffjiao/mapdb,jankotek/mapdb,morfeo8marc/mapdb,olupas/MapDB,binarytemple/mapdb,jankotek/MapDB,hangum/mapdb,olupas/MapDB