Incremental filtering does not behave properly in cxLookupComboBox, sometimes only one value is shown on dropdown where there should be more than one accordingly to what is being typed into.
In the attached sample, try to type "b", you should see 7 values in the dropdown. Then type "e" as 2nd letter, you'd expect to see 4 values starting with "be", but only one is shown. If I type more letters or press backspace I have different number of items shown, sometimes I see all the items i expect to see, sometimes i only see one item.
Steps to Reproduce:
Put a cxLookupComboBox on a form with IncrementalFiltering set to True. Try to type first letters shared by more than one items or press backspace when typed some.
Actual Results:
Sometimes only one item is shown in dropdown instead of all item beginning with typed letters.
Expected Results:
Dropdown should show all items starting with typed letters.
Incremental filtering excessively narrows filter results in error
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