BR_GetMouseCursorContext starts spamming "Toggle Master track visible"

[jalovatt]

I'm calling it from a Lua script. In a fresh Reaper session with no tracks, I can reproduce it consistently.

Reaper 5.33 x64, Windows 8.1

gfx.init("", 200, 200, 0, 200, 200)

local function Main()
	
	local char = gfx.getchar()
	if char == -1 or char == 27 then
		return 0
	end
	
	--local wnd, seg, det = "a", "b", "c"   -- <- this code works
	local wnd, seg, det = reaper.BR_GetMouseCursorContext()  -- <- this code doesn't
	
	local str = (not wnd or wnd == "unknown") 
				and	"- No context -"
				or	wnd..
						(not not seg and (" | "..seg..
							(not not det and (" | "..det))))
							
	if string.sub(str, -2) == "| " then str = string.sub(str, 1, -4) end
	
	gfx.x, gfx.y = 10, 10
	gfx.drawstr(str)
	
	gfx.update()
	
	reaper.defer(Main)
	
end

Main()

[swstim]

Fixed in latest pre (2.9.0). Thanks @cfillion!