Free textfield in survey disabled when clicking on it on Safari

This bug could only be reproduced with Safari on Mac. Chrome and Firefox are unaffected. When answering a question with alternatives (single choice, multiple choice or ranking), if a free text alternative is available, clicking on the textfield will uncheck the box, making it impossible to enter text. This is more annoying than blocking as using TAB or clicking many times will give you the focus and allow you to write text.