In version 19, if a grid is selectable you can't type spaces into inputs inside of a cell detail template inside the grid. With the template below I am not able to type spaces in the textarea. If I change selectable to false, the text area allows spaces. If I revert to version 18 it works as expected.
<kendo-grid [selectable]="true" [kendoGridBinding]="[{name: 'bill', age: 55}]">
<kendo-grid-column field="name" title="Name"></kendo-grid-column>
<kendo-grid-column field="age" title="Age"></kendo-grid-column>
<ng-template kendoGridDetailTemplate>
<textarea rows="3"></textarea>
</ng-template>
</kendo-grid>