From a7fa40b643ca64e058c2997267ed3469b6e5f85f Mon Sep 17 00:00:00 2001
From: Mark Harrah <dmharrah@gmail.com>
Date: Sun, 15 May 2011 19:43:06 -0400
Subject: [PATCH] patch from #18

---
 tasks/Execute.scala | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/tasks/Execute.scala b/tasks/Execute.scala
index cc791eab9..8d36df404 100644
--- a/tasks/Execute.scala
+++ b/tasks/Execute.scala
@@ -262,7 +262,7 @@ final class Execute[A[_] <: AnyRef](checkCycles: Boolean, triggers: Triggers[A])
 		dependencies( node ) foreach { dep =>
 			def onOpt[T](o: Option[T])(f: T => Boolean) = o match { case None => false; case Some(x) => f(x) }
 			def checkForward = onOpt( forward.get(node) ) { _ contains dep }
-			def checkReverse = onOpt( reverse.get(dep) ){ _.toSet contains node }
+			def checkReverse = onOpt( reverse.get(dep) ){ _.exists(_ == node) }
 			assert( done(dep) ^ ( checkForward && checkReverse ) )
 		}
 	}