LuaCustomFolderState: error when far launched as editor

[johnd0e]

@zg0

╔══════════════════════════════════════════════════ LuaMacro ══════════════════════════════════════════════════╗
║ ...ripts\Panels\LuaCustomFolderState\customfolderstate.moon:27: attempt to index local 'panel' (a nil value) ║
║ stack traceback:                                                                                             ║
║    ...ripts\Panels\LuaCustomFolderState\customfolderstate.moon:27: in function '__init'                      ║
║    ...ripts\Panels\LuaCustomFolderState\customfolderstate.moon:43: in function 'Panel'                       ║
║    ...ripts\Panels\LuaCustomFolderState\customfolderstate.moon:58: in function 'panels'                      ║
║    ...ripts\Panels\LuaCustomFolderState\customfolderstate.moon:157: in function 'main'                       ║
║    ...ripts\Panels\LuaCustomFolderState\customfolderstate.moon:173: in main chunk                            ║
║    [C]: in function 'xpcall'                                                                                 ║
║    C:\Apps\Far3\Plugins\LuaMacro\utils.lua:794: in function <C:\Apps\Far3\Plugins\LuaMacro\utils.lua:771>    ║
║    [C]: in function 'RecursiveSearch'                                                                        ║
║    C:\Apps\Far3\Plugins\LuaMacro\utils.lua:863: in function <C:\Apps\Far3\Plugins\LuaMacro\utils.lua:690>    ║
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