Abort apiRequest once the user has enetered a new text
Instead of letting, in the worst case, a lot of api requests being
executed by the browser, even if the input, they're created from,
already changed, the api requests now will be cancelled if the title
input changes during the execution.
Follow up: Ib28f0862e5507d8e3dcb5f85097955dd54e8c3c5