ComboBox in grid's RowEditing plugin not working as it was
I have comboboxes in a grid's rowediting plugin, that in version 4.2.0 worked fine. In 18.104.22.1683, when I first enter rowediting mode, the comboboxes are empty (instead of showing the corresponding displayField's value)
than I try to select a new value for the combobox field and I click Update. RowEditing plugin closes but the fields'value remains unchanged. As if I've never edited it. Same thing in 4.2.0 - no such problems.
I'm sending some example code that replicates this. Please forgive the ugly code, variable names and the cyrillic data, but it's autogenerated from our RAD platform, just replaced web REST-calls with static data.
Please let me know if this is an extjs bug or I'm doing somethign inappropriate.