Steps to reproduce

1. Install ExConTrans alongside magnolia-content-editor 2.1
2. Open "add to batch" dialog from the Pages app and note the dialog.
3. Attempt to select an existing batch

Expected results

1. The dialog should show an Instructions field.
2. It is expected that a page can be added to an existing batch.

Actual results

1. There is no Instructions field. There is, however, a large white space at the foot of the form. See screenshot.
   # Attempting to select an existing dialog fails. The dialog's fields are not updated and an error is thrown. See stacktrace.

Workaround

The attached decorator can be deployed to replace the use of the expanding text field.
Add to a light module at A_LIGHT_MODULE/decorations/content-translation-support-ext-core/dialogs/

Development notes

The stacktrack shows that at the point of switching the fields shown/hidden, Instructions does not exist.
For some reason, Instructions is an expanding text field from the Content Editor Framework
This modules works as expected using Content Editor 1.3.10.