Input value doesn't display. How is that possible?

Question

This must be something utterly stupid that I\'ve done or am doing, but I have an input with a value attribute that simply isn\'t being displayed:

Answer 1

Had a similar problem with input value retrieved via ajax, correctly set and verifiable via browser console, but not visible. The issue was another input field having the same id, and it was not evident because of several JSP files included, many of them having forms.