Merge branch 'develop' into quickref-runwithreplace

Author: Ericson2314

ChangeLog.md

@@ -5,6 +5,7 @@
 * Data.WeakBag.traverse and Data.FastWeakBag.traverse have been
   renamed to Data.WeakBag.traverse_ and Data.FastWeakBag.traverse_
   respectively.
+* Fixes a bug in `Reflex.Patch.MapWithMove.patchThatSortsMapWith` that was producing invalid `PatchMapWithMove`.
 
 ## 0.6.2.4
 

src/Reflex/Patch/MapWithMove.hs

@@ -155,7 +155,7 @@ patchThatSortsMapWith cmp m = PatchMapWithMove $ Map.fromList $ catMaybes $ zipW
           Just (from, to)
         reverseMapping = Map.fromList $ catMaybes $ zipWith f unsorted sorted
         g (to, _) (from, _) = if to == from then Nothing else
-          let Just movingTo = Map.lookup from reverseMapping
+          let Just movingTo = Map.lookup to reverseMapping
           in Just (to, NodeInfo (From_Move from) $ Just movingTo)
 
 -- | Create a 'PatchMapWithMove' that, if applied to the first 'Map' provided,