Regression introduced in R1 2020.
Reproducible in the demo.
The DropDownTree items are not checked. The issue is reproducible only if the checkbox is clicked. Clicking its label, or checking the checkbox with the keyboard (Space key) checks all items as expected.
All items are checked.
Unexpected change event triggering when using value() method of remote datasource DropDownTree with checkboxes and autoBind false
Script runs through datasource read else, then through datasource read if and then DropDownTree's change event is fired.
NOTE: if there is no setTimeout or if the two nodes are loaded at the same time with no if else clause, then the issue is not reproducible.
DropDownTree's change event is not fired, when value() method is called.
Similar fixed issue: #4352