Drag and drop into text question UI issues

Summary Needs to be tested in: Chrome; Firefox; and Edge. Set up Log in as teacher or admin. Create a test course (or use an existing one) Create a Drag and drop into text question in the question bank. See the attached big-drag-drop-question.xml file for an easy import ( https://docs.moodle.org/38/en/Drag_and_drop_into_text_question_type ) Testing In the question bank, for the created question, click 'Edit -> Preview'. Preview the question. Verify that you can input an answer to the question by dragging with the mouse. As part of inputting your response, try dragging a different answer on top of a space that is already full. Verify that the new answer goes in the box, and the previous answer goes back home. (See the animated GIF in MDL-68113 if you want to be reminded about what the old buggy behaviour looked like.) Verify that the previous answer start to go back to home right from the box, not on the right side of the box Click the 'Submit and finish' button. Verify that the page reloads with all your answers in place, and the grade corresponds to the answer you gave. Verify that it is no longer possible to drag things. Verify that the cursor will not change to the moving cross