updateTreeview cannot handle unselected operations

I modified the radioButtons in the sample code to checkboxGroupInput, and then changed multiple to T. The purpose is to enable multi-select operations, and when operating check boxes, you can select and then deselect. But the phenotype of treeview is not as expected. Please see the example image below


Start by reproducing the sample change from radioButtons to checkboxGroupInput with multiple set to T, then exercise updateTreeview by selecting and deselecting operations. Compare the resulting treeview phenotype with the two attached images; done means unselected operations produce the expected treeview state.

Written by the indexing model from the issue text.