Fixed 500 when sending wrong mobiledoc structure
Fixed 500 when sending wrong mobiledoc structure

refs #10438

ErisDS/Ghost,kevinansfield/Ghost,Kikobeats/Ghost,ErisDS/Ghost,kevinansfield/Ghost,JohnONolan/Ghost,TryGhost/Ghost,Gargol/Ghost,Gargol/Ghost,janvt/Ghost,bitjson/Ghost,Kikobeats/Ghost,ErisDS/Ghost,Kikobeats/Ghost,e10/Ghost,e10/Ghost,bitjson/Ghost,TryGhost/Ghost,JohnONolan/Ghost,janvt/Ghost,kevinansfield/Ghost,JohnONolan/Ghost,TryGhost/Ghost