Changing a record in a grid is not triggering a call to getrowclass (fiddle included)

If you try this fiddle on 4.2 (eg. 4.2.1.883 classic)

http://ift.tt/1zdC0cc





Select a row - then click "toggle" - the row changes class and goes from normal to bold and back.



Trying the same on 5.1 does nothing - the getRowClass is not called when the record is changed.



Any ideas ?

Changing a record in a grid is not triggering a call to getrowclass (fiddle included)