fix invalid comparing in transitions

alib/src/automaton/PDA/TransitionPDA.cpp

@@ -40,7 +40,7 @@ bool TransitionPDA::operator <(const TransitionPDA& other) const {
 		return from < other.from;
 	} else if (input != other.input) {
 		return input < other.input;
-	} else if (to != to) {
+	} else if (to != other.to) {
 		return to < other.to;
 	}

alib/src/automaton/UnknownTransition.cpp

@@ -55,7 +55,7 @@ bool UnknownTransition::operator <(const UnknownTransition& other) const {
 		return input < other.input;
 	} else if (to != other.to) {
 		return to < other.to;
-	} else if (output != output) {
+	} else if (output != other.output) {
 		return output < other.output;
 	} else if (shift != other.shift) {
 		return shift < other.shift;