Issues with stateful grid on grouping

[ypandey]

For ExtJS 4.2.2 - persistence of grouping on columns works.
For ExtJS 5.0.1 - grouping itself is not working.
For ExtJS 4.2.3 & 4.2.x & 5.0.x night builds - grouping persistence doesn't work.

Selection Issue with 4.2.2

Steps:

1. On fiddle, group by "subject" field.
2. Rerun the fiddle. (as expected, auto grouped by "subject" column)
3. Collapse "Subject: Math" group
4. Now unable to select second and third row(record) in "Subject: science" group.

[Gary Schlosberg]

Thanks for the report! I have opened a bug in our bug tracker.