Make sure scores are not infinity when checking for equality

Author: mmghannam

examples/finished/nodesel_hybridestim.py

@@ -161,7 +161,9 @@ def nodecomp(self, node1, node2):
         score2 = self._get_nodesel_score(node2)
 
         # Check if scores are equal or both infinite
-        if (self.scip.isEQ(score1, score2) or
+        any_infinite = (self.scip.isInfinity(score1) or self.scip.isInfinity(-score1) or
+                        self.scip.isInfinity(score2) or self.scip.isInfinity(-score2))
+        if ( (not any_infinite and self.scip.isEQ(score1, score2)) or
             (self.scip.isInfinity(score1) and self.scip.isInfinity(score2)) or
             (self.scip.isInfinity(-score1) and self.scip.isInfinity(-score2))):