[test-next] Severe lag and lua error when horizonchars + rhyolite ruin from oldc round 2 are mixed

Does not happen in 2.2.9, so possibly related to lua hook api refactor.

Causes this function (called in MapLoad) to error in oldc thinkers.lua:

local function levelHUDdisables(m)
    if mapheaderinfo[m].hidetitle << error line
        F.DEShortcut("stagetitle", false)
    else
        F.DEShortcut("stagetitle", true)
    end

    if mapheaderinfo[m].creditsmap or mapheaderinfo[m].marathonstartup or m == hub
        F.DEShortcut("score", false)
        F.DEShortcut("time", false)
        F.DEShortcut("rings", false)
        F.DEShortcut("lives", false)
    else
        F.DEShortcut("score", true)
        F.DEShortcut("time", true)
        F.DEShortcut("rings", true)
        F.DEShortcut("lives", true)
    end
end

Perfstats + mobj duplication issue: https://cdn.discordapp.com/attachments/750496834568585336/934624708740120636/srb20010.png https://cdn.discordapp.com/attachments/750496834568585336/934605259727335475/srb20003.gif

For full context see conversation starting here: https://discord.com/channels/357945222111428609/750496834568585336/934620348849221693

changed the description

added Bug Regression labels

changed milestone to %2.2.10

Duplicate #721 (closed), MapLoad was called because MobjLineCollide was called on a MT_NULL (NiGHTS axis hack).

closed