Datagrid dgData bug

[Bob Sneidar]

Hi all. 

Something is happening with getting the dgData of a datagrid. If I am stepping through code that gets the dgData of an empty datagrid, I get an array whose only key is 0 and there is no value. This never happened before. This is problematic for me because I often simply test to see if the variable is an array and proceed accordingly. 

If anyone else can reproduce this, I will post a bug report. MacOS X 10.13.6 LC 9.0.1 rc1. 

Bob S