ExtJS's date formatter appears to be broken: 'time', 'timestamp', and 'u' all return invalid values. ('time' and 'timestamp' produce an - incomprehensible - alphanumeric string, and 'u' seems to produce "000" reliably.
Steps to reproduce the problem:
Get a submit value from a datefield with submitFormat specified. (datefield.getSubmitValue())
The result that was expected:
A valid time, timestamp, or millisecond representation of the date.
The result that occurs instead:
An invalid time, timestamp, or millisecond representation of the date.