!pars[pit].insetAllowed(tmpbuf->getInset(i)->lyxCode()))
// do not track deletion of invalid insets
tmpbuf->eraseChar(i--, false);
!pars[pit].insetAllowed(tmpbuf->getInset(i)->lyxCode()))
// do not track deletion of invalid insets
tmpbuf->eraseChar(i--, false);