Merge branch 'overwrite-in-tune' into 'master'

Fix overwriting in tune of Editor (Map.union is left-biased)

See merge request !322

Libraries/iTasks/UI/Tune.icl

@@ -38,7 +38,7 @@ instance tune UIAttributes Editor
 where
 	tune extra editor=:{Editor|genUI=editorGenUI} = {Editor|editor & genUI = genUI}
 	where
-		genUI attr dp mode vst = editorGenUI ('DM'.union attr extra) dp (mapEditMode id mode) vst
+		genUI attr dp mode vst = editorGenUI ('DM'.union extra attr) dp (mapEditMode id mode) vst
 
 instance tune UIAttribute Task
 where