Lua error with Helper function list

[guillaume-dorczynski]

If you double click on a function in a category (such as entity or whatever), this error will often appear:

[ERROR] addons/wiremod_lemongate/lua/lemongate/editor/ea_helper.lua:84: attempt to concatenate a nil value
  1. DoClick - addons/wiremod_lemongate/lua/lemongate/editor/ea_helper.lua:84
   2. InternalDoClick - lua/vgui/dtree_node.lua:81
    3. DoDoubleClick - lua/vgui/dtree_node.lua:49
     4. unknown - lua/vgui/dlabel.lua:125

[Rusketh]

Can't reproduce but i do get a warning from the gui in console.
'EA_FILEBROWSER is obsolete, this should not happen.'

Assigning Oskar to look into this.

[guillaume-dorczynski]

Yes I also have this warning in console, but I don't think this is related to the error I posted. It's happening when you double click a function, then another. If someone could confirm..