TestCafe does not write in text input field - testing

Question

I'm using TestCafe for test automation of a web application based on the Wicket framework. I try to type text into a text input field ... well, actually it is a dropdown list, where a text input field appears, so that the user can search for certain codes. The HTML fragment is as follows:
HTML fragment
And here is the corresponding screenshot (text field above "001"):
Text input field with dropdown
The user can type some characters and the list below is automatically filtered (I did this manually):
Text input field with some text
My TestCafe test tries this:
.click( productcodeList )
.expect( productcodeInputField.visible ).ok()
.click( productcodeInputField )
.typeText( productcodeInputField, 'ABW' )
i.e.
Click on the drop down list.
Assume that the text input field is now visible (works fine).
Click on the text input field (this should not be necessary, since typeText() is supposed to do this anyway).
Type the text "ABW" into the text input field ==> This does not work.
I'm sure that my Selector works, since the assertion (expect) is successful and when I debug the test run after the second click (on the text input field), I see the following:
TestCafe screenshot
I.e. the cursor is directly on the text field, but somehow TestCafe cannot write the text into the field.
Some additional information: The Selector for the input field is created as follows:
productcodeInputField = Selector('span').withAttribute('class', /select2-dropdown.*/ ).child('span').withAttribute('class', /select2-search.*/ ).child('input').withAttribute('class', 'select2-search__field' );
More information: I'm using the same logic on the same page:
kurzbezeichnungField = Selector('input').withAttribute('name', /.*aeAbbreviation.*/);
...
await t.click( kurzbezeichnungField )
.typeText( kurzbezeichnungField, 'xxxWWW' )
and this works fine.
Node.js version: v10.16.3
Testcafe version: 1.5.0

Answer 1

This issue looks like a bug. However, I cannot say it precisely without an example that demonstrates the problem.
My team would really appreciate it if you share your project or sample to demonstrate the issue.
Please create a separate issue in the TestCafe github repository using the following template and provide as much additional information as possible.