Currency tooltip issue with PTR

[zeptognome]

Addon Version

v0.1.26

World of Warcraft Version

Retail PTR

Describe the bug

PTR 10.2.7.54253
Showing a currency tooltip generates this error:

22x ...izzard_PTRFeedback/Blizzard_PTRFeedback_Tooltips.lua:174: bad argument #1 to 'match' (string expected, got nil)
[string "=[C]"]: in function match' [string "@Blizzard_PTRFeedback/Blizzard_PTRFeedback_Tooltips.lua"]:174: in function <...izzard_PTRFeedback/Blizzard_PTRFeedback_Tooltips.lua:173> [string "=[C]"]: in function SetCurrencyToken'
[string "@BetterBags/frames/currency.lua"]:85: in function <BetterBags/frames/currency.lua:83>

Locals:
(*temporary) = nil
(*temporary) = "currency:(%d+)"
(*temporary) = "string expected, got nil"

Steps to reproduce

Open BetterBags Currency panel and mouse over a currency