Show unrelated namespace with matching operator name

src/Idris/Syntax.idr

@@ -1047,12 +1047,14 @@ removeFixity loc _ key = do
      else -- When the fixity is not found, find close matches
        let fixityNames : List Name = map fst (toList fixityInfo)
            closeNames = !(filterM (coreLift . closeMatch key) fixityNames)
-       in if null closeNames
+           sameName : List Name = fst <$> lookupName (dropAllNS key) fixityInfo
+           similarNamespaces = nub (closeNames ++ sameName)
+       in if null similarNamespaces
              then
                throw $ GenericMsg loc "Fixity \{show key} not found"
              else
-             throw $ GenericMsgSol loc "Fixity \{show key} not found" "Did you mean"
-                 (map printFixityHide closeNames)
+               throw $ GenericMsgSol loc "Fixity \{show key} not found" "Did you mean"
+                 $ map printFixityHide similarNamespaces
   where
     printFixityHide : Name -> String
     printFixityHide nm = "%hide \{show nm}"

tests/idris2/operators/operators011/Test.idr

@@ -1,2 +1,2 @@
 
-%hide DoesNotExist.infixl.(+)
+%hide DoesNotExist.infixl.(+-+)

tests/idris2/operators/operators011/Test4.idr

@@ -0,0 +1,4 @@
+
+import Module
+
+%hide DoesNotExist.infixl.(&&++)

tests/idris2/operators/operators011/expected

@@ -1,10 +1,10 @@
 1/1: Building Test (Test.idr)
-Error: Fixity DoesNotExist.infixl.(+) not found
+Error: Fixity DoesNotExist.infixl.(+-+) not found
 
-Test:2:1--2:30
+Test:2:1--2:32
  1 | 
- 2 | %hide DoesNotExist.infixl.(+)
-     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+ 2 | %hide DoesNotExist.infixl.(+-+)
+     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
 1/2: Building Module (Module.idr)
 2/2: Building Test1 (Test1.idr)
@@ -40,3 +40,15 @@ Test3:3:1--3:27
 
 Did you mean:
  - %hide Module.infixl.(&&++)
+2/2: Building Test4 (Test4.idr)
+Error: Fixity DoesNotExist.infixl.(&&++) not found
+
+Test4:4:1--4:33
+ 1 | 
+ 2 | import Module
+ 3 | 
+ 4 | %hide DoesNotExist.infixl.(&&++)
+     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+
+Did you mean:
+ - %hide Module.infixl.(&&++)

tests/idris2/operators/operators011/run

@@ -4,3 +4,4 @@ check Test.idr
 check Test1.idr
 check Test2.idr
 check Test3.idr
+check Test4.idr