I've seen it on my system and is replicable in
demo.otrs.org
if you split a ticket, then select the queue that ticket will be inserted
into, then a script error occour. On the lower part of the page displayed, some
ticket are displayed without any link between each other.
In 1.2 that ticket where almost coming from the same customer
Id.
On my system I've deleted all the ticket (where only 2) now the error is
not displayed anymore but when I select the queue where the new splitted ticket
will be put into no tickets are displayed below.
Ciao
AleX