Hello,
you mean editing of already created reservation or creating new reservation as admin?
I am not sure what version is actual at the moment, but there was one repair for new reservations:
Go to:
components/com_booking/views/reservation/tmpl/form_admin.php
And remove these rows at the end of document:
<input type="hidden" name="subject" value="<?php echo $this->reservation->subject; ?>" />
<input type="hidden" name="subject_title" value="<?php echo $this->reservation->subject_title; ?>" />
<input type="hidden" name="rtype" value="<?php echo $this->reservation->rtype; ?>" />
