Index: bin/emerge
===================================================================
--- bin/emerge	(revision 5965)
+++ bin/emerge	(revision 5968)
@@ -1962,6 +1962,11 @@
 	def altlist(self, reversed=False):
 		if reversed in self._altlist_cache:
 			return self._altlist_cache[reversed][:]
+		if reversed:
+			retlist = self.altlist()
+			retlist.reverse()
+			self._altlist_cache[reversed] = retlist[:]
+			return retlist
 		mygraph=self.digraph.copy()
 		myblockers = self.blocker_digraph.copy()
 		retlist=[]
@@ -1979,6 +1984,7 @@
 		ignore_priority_range = [None]
 		ignore_priority_range.extend(
 			xrange(DepPriority.MIN, DepPriority.MEDIUM + 1))
+		tree_mode = "--tree" in self.myopts
 		while not mygraph.empty():
 			ignore_priority = None
 			nodes = None
@@ -2001,7 +2007,7 @@
 			selected_nodes = None
 			if nodes:
 				if ignore_priority <= DepPriority.SOFT:
-					if ignore_priority is None and not reversed:
+					if ignore_priority is None and not tree_mode:
 						# Greedily pop all of these nodes since no relationship
 						# has been ignored.  This optimization destroys --tree
 						# output, so it's disabled in reversed mode.