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Issue description:

I created a Flyout for the returned warlock curses, but it destroyed the whole neuron.
I managed to edit it and it works again, but the spells seem to not be found.

How to reproduce:

/flyout ,spell:Fluch:LINEAR:BOTTOM:TOP:1:CLICK

1. Go to '....'
2. Click on '....'
3. Scroll down to '....'
4. See error

Technical info:

• Addon Version: Neuron-1.4.3a.zip
• Client: Retail
• Client Patch Version: 9.0.2

Lua error log:

the bug report: 1x Neuron\Objects\ACTIONBUTTON_Flyout.lua:485: Usage: IsSpellKnown(spellID[, isPet]) [string "=[C]"]: in function IsSpellKnown'
[string "@neuron\Objects\ACTIONBUTTON_Flyout.lua"]:485: in function filter_spell' [string "@Neuron\Objects\ACTIONBUTTON_Flyout.lua"]:758: in function GetDataList'
[string "@neuron\Objects\ACTIONBUTTON_Flyout.lua"]:799: in function Flyout_UpdateData' [string "@Neuron\Objects\ACTIONBUTTON_Flyout.lua"]:1072: in function UpdateFlyout'
[string "@neuron\Neuron-GUI.lua"]:2682: in function macroText_OnEditFocusLost' [string "@Neuron\Neuron-GUI.lua"]:3102: in function <Neuron\Neuron-GUI.lua:3102> [string "=[C]"]: in function ?'
[string "@FrameXML\UIParent.lua"]:2388: in function <FrameXML\UIParent.lua:1269>

Locals:
(*temporary) = nil
(*temporary) = true
`