ui.combobox returns different types of values

[MartinBarus]

sometimes the return value is string (when selected by dropdown), sometimes, if you type some text in it, list is returned instead, for the same instance.

You can also use this tutorial to reproduce https://wave.h2o.ai/docs/examples/combobox

[aalencar]

@MartinBarus I managed to reproduce it on Wave 0.22 but not on master (with the latest changes, next release).
It looks like it was caused by #1327 and has been unintentionally fixed by #1538

0.22

Screen.Recording.2022-09-08.at.11.11.20.mov

After PR 1538 - latest changes

Screen.Recording.2022-09-08.at.11.10.05.mov

Currently checking what was the bug and will write some tests to ensure it won't happen again.

cc: @mturoci

[mturoci]

@aalencar I managed to repro it yesterday on master. The problem is that your combobox implementation relies on hitting enter at the end of typing. Instead, we should update wave.args continually as user types (same behavior as textbox).

Repro steps should be something like:

• Run combobox.py example.
• Write something to the first combobox.
• Click submit button.
• See the list in q.args.

[mturoci]

I checked wrong branch, please ignore my last comment.