Verified as a valid usability issue. Would be a definite improvement if there was some kind of error message.

@Mike
See what you can do with this. We have examples of live validation on the login form and Worker Config and a few other places. You shouldn't need to use the email validation (it doesn't do multiples), just "required".

Note:

Also keep in mind that you can create broken tickets by inputting an invalid address, where no requesters are actually created. It sounds like a user was using it as a log message tool and inputting a traditional name as the requester, e.g. Joe Geck (no @example.com). They thought this was by design when it is clearly not, I expect phone call logging will be the better alternative when it's done.

Update this thread when completed.
http://www.cerb4.com/forums/showpost.php?p=10609&postcount=6

Add 'send mail' to this list too as it behaves like 'open ticket'.

Update this thread when fixed.
http://www.cerb4.com/forums/showpost.php?p=11770&postcount=1

I changed the title and description from "log message" to "open ticket" which is the more recent Cerb4 language we use.

I find it really really really really really really frustrating that issues like this seem to hang around without being fixed.
I've just lost 20+mins of work because of this bug. And now I find it's been around for over a year. Not impressed.

^^^ Update Peter's open thread in the forums when completed.
http://www.cerb4.com/forums/showpost.php?p=12200&postcount=1

Stumbled on this one today and even though I already noted this in the comments, the problem also exists in "Send Mail". Decided to finally tweak the title and description to reflect that.

Another thread where the "reset everything with no error" behavior was noticed.

http://www.cerb4.com/forums/showpost.php?p=12667&postcount=11

I tired to update/use the orginal patch attached but things have just changed to much for me to make it work. I instead copied the way the success message was generated and displaying a failure message instead. With translation support.

As normal here are the linkes to my cerb4 / cerb5 branches were I will be keeping the patches up to date.

cerb4 - http://github.com/rmiddle/cerb4/tree/jira/chd-690
cerb5 - http://github.com/rmiddle/cerb5/tree/jira/chd-690

Thanks
Robert

Fixed in 5.0 RC1