Task - Updating hours issue with enter key bypassing Save.

When adding a task, you can enter the amount of hours and bypass the Save key by hitting the enter key and you are returned/redirected to a white page (see below). The task is saved anyway without a comment. You should trap for the enter key so the users are forced to enter comments. I have confirmed this behavior on IE and Firefox. I stumbled on this problem just by the natural habit of pressing enter after entering data in a field.

New screen that you are redirected to has this:
Administration User said, Today at 02:21pm (50%)
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-, Billable 10.00 Hrs