Fixed bug in `interactRW` task. When an editor did a full replace the

'interact' class attribute was not set on the replacement ui. This led
to occasional weird behavior in the UI (mostly with lists that do full
replacements).

Libraries/iTasks/WF/Tasks/Core.icl

@@ -181,6 +181,9 @@ evalInteract prevChange mbr (?Just st) editorId sds editor modefun writefun even
 				= case mbChange of
 					(Ok (change, st, mbw), editorId, iworld)
 						# change = mergeUIChanges prevChange change
+						# change = case change of
+							ReplaceUI (UI type attr items) = ReplaceUI (UI type (addClassAttr "interact" attr) items)
+							_ = change
 						= case mbw of
 							?Just w = writefun w sds NoValue
 								(evalInteract change mbr (?Just st) editorId sds editor modefun writefun)