Grid does not recreate its columns collection after data change

[hanastasov]

Steps to reproduce

1. Add grid with autoGenerate set to true
2. 2. In ngOnInit, set this.grid.shouldGenerate = true

Result 1:
See console:

3. Change the collection that is bound to the grid data property

this.data = this.data3;

Result

Grid does not recreate its columns based on the new data bound to the data input property

Expected result

Grid to recreate its columns based on the new data bound to the data input property and No errors to be thrown initially.

[hanastasov]

Changing autoGenerate to true just before changing the data works:

        this.grid1.shouldGenerate = true;
        this.data = this.data3;