GlushkovRTE: Simplify code after variant fix

alib2algo/src/rte/convert/ToPostfixPushdownAutomatonGlushkov.cpp

@@ -158,13 +158,9 @@ ToPostfixPushdownAutomatonGlushkov::convert ( const rte::FormalRTE < > & rte ) {
 			for ( const GlushkovFollow::TFollowTuple < SymbolType, RankType > & followTuple : followSet [ symb ] ) { //tuple = vector < set < symb > >
 				ext::vector < ext::variant < alphabet::BottomOfTheStackSymbol, ext::set < common::ranked_symbol < SymbolType, RankType > > > > pop, push;
-				/*
-				for ( const auto & e : symbFollowTuple )
-				   pop.push_back ( e );
-				std::reverse ( pop.begin ( ), pop.end ( ) ); // <------------ WTF. CRASHES HERE // FIXME
-				*/
 				for ( const auto & e : followTuple )
-					pop.insert ( pop.begin ( ), e );
+				   pop.push_back ( e );
+				std::reverse ( pop.begin ( ), pop.end ( ) );
 				push.push_back( ext::set < common::ranked_symbol < SymbolType, RankType > > { symb } );
@@ -194,7 +190,8 @@ ToPostfixPushdownAutomatonGlushkov::convert ( const rte::FormalRTE < > & rte ) {
 					if ( ( size_t ) symb.getRank ( ) > 0 ) {
 						for ( const auto & e : symbFollowTuple )
-							pop.insert ( pop.begin ( ), e );
+							pop.push_back ( e );
+						std::reverse ( pop.begin ( ), pop.end ( ) );
 					}
 					push.push_back( kv2.second );