Paragraph const & par = pars_[pit];
Paragraph const & prevpar = pit > 0 ? pars_[pit - 1] : par;
if (pit > 0 && cur.pos() == par.beginOfBody()
+ && !par.isEnvSeparator(cur.pos())
&& ((prevpar.getDepth() > par.getDepth()
&& !par.layout().isEnvironment())
|| (prevpar.layout() != par.layout()