duffrohde
df19d2a4a5
Fixes a Grid issue that breaks sorting. (#10999)
* Fixes a Grid issue that breaks sorting.
When multi-select has been enabled and disabled a number of times, sorting on the first column in a Grid is broken.
Unregistering a click handler on the header solves the problem.
* Added a test checking that sorting of a grid column still works after having enabled and then disabled multi select mode.
The grid is configured with an extra header row containing a text box since it triggers an exception if the header click handler for the multi select column is not removed.
* Remove an unused import that was added by mistake