Unknown modifier "overwrite" stops Link.Create

[jwied]

Describe the bug
In Link version 4.0.17, the modifier "overwrite" is written into the .linkconfig file, when a Link.Export is performed with this option.
Then Link.Create doesn´t work on this folder.

To Reproduce

1. Have a non-empty namespace #.XY
2. Perform Link.Export:
   opts←⎕NS''
   opts.overwrite←1
   opts.arrays←1
   opts.sysVars←1
   opts ⎕SE.Link.Export '#.XY' 'F:\tmp\XY'
3. Start a new Dyalog session (or )CLEAR)
4. Perform Link.Create:
   ⎕SE.Link.Create '#.XY' 'F:\tmp\XY'
5. Get this error:
   Link Warning: Unknown Setting(s) in "F:\tmp\XY/.linkconfig": overwrite
   ⎕SE.Link.Create: Unknown modifiers: overwrite

Expected behaviour
Link.Create should only report this warning, but shouldn´t throw an error and stop

Desktop (please complete the following information):

• Dyalog 19.0.50236 64-bit Unicode, BuildID 38f63899
• OS Windows 11 (10.0.22631) 64-bit
• Link 4.0.17

[5jt]

+1

I triggered this problem when I exported my active workspace to a folder

      ]LINK.Export # /Users/sjt/Projects/dyalog/tools
Exported: # → /Users/sjt/Projects/dyalog/tools

then realised arrays is not set by default, so repeated the command with flags arrays and then overwrite set.

      ]LINK.Export # /Users/sjt/Projects/dyalog/tools -arrays
ERRORS ENCOUNTERED: ⎕SE.Link.Export: Files already exist: use the -overwrite flag to force overwriting the following files:
/Users/sjt/Projects/dyalog/tools/hex_rgb.aplf                                                                              
/Users/sjt/Projects/dyalog/tools/rgb_rgba.aplf                                                                             
/Users/sjt/Projects/dyalog/tools/rnd.aplf                                                                                  
      ]LINK.Export # /Users/sjt/Projects/dyalog/tools -arrays -overwrite
Exported: # → /Users/sjt/Projects/dyalog/tools

The overwrite flag is now set in .linkconfig:

{
  LinkVersion: { ID: "4.0.20"},

  Settings: {
    arrays: 1,
    overwrite: 1,
  },
}

Which breaks Create.

      )CLEAR
clear ws
      ]LINK.Create T /Users/sjt/Projects/dyalog/tools
Link Warning: Unknown Setting(s) in "/Users/sjt/Projects/dyalog/tools/.linkconfig":  overwrite 
ERRORS ENCOUNTERED: ⎕SE.Link.Create: Unknown modifiers:  overwrite

Workaround: remove .linkconfig.