Failure to remove obsolete file when nameclass changes

[abrudz]

Describe the bug When the nameclass of an item has changed outside the editor, the file extension changes, but Link fails to notice the presence of the old file.

To Reproduce

      ]link.create # /tmp/nc-change
Linked: # ←→ c:\tmp\nc-change [directory was created] 
      ⎕FX'foo' '∘∘∘'
      ]link.add foo
Added: #.foo
      ⎕EX'foo'
      foo←⍳3
      ]link.add foo
Added: #.foo
      ↑⊃⎕ninfo⍠1⊢'/tmp/nc-change/*'
/tmp/nc-change/foo.apla
/tmp/nc-change/foo.aplf

Expected behaviour It should remove the orphaned file.

Session transcript If applicable, copy your log in to help explain your problem.

Desktop (please complete the following information):

• OS: Windows
• APL version: 19.0.47359 64-bit Unicode
• ⎕SE.Link.Version: 4.0.7