Description

When you click on a cell which has an Editor Template with a NumericTextBox the text inside does not always get selected/highlighted. This is observed only in Server type applications. 

Reproduction

1. Copy the code from this REPL into a Server side project or directly download the attached Sample Project.
3. Tab in and out of the Count column.
4. The NumericTextBox does not always select the number inside.
5. [Video Example](https://screenpal.com/watch/c0QtXtV5iMR) 

Current

The NumericTextBox does not always select/highlight the number inside

Expected

The NumericTextBox always select/highlight the number inside