Print job still spooling after FORM command executed

[Boaz Bezborodko]

There is an older program on my system that I didn't write.  While in 
IUA on an invoice record an @KEY command calls a separate processing 
table to print the invoice.  The table calculates the necessary fields 
and then generates the printout with a FORM command.  What I noticed 
today is that the job remains open for spooling in the queue after this 
is done and the queue doesn't close allowing the job to print until you 
exit out of IUA.

Apparently it's always acted the same way, but I didn't know this since 
I don't run this program myself and no one told me about it.

According to my reading of the manual FORM should close the spool and 
allow the job to print.  What could stop this from happening?