Common.ai Bottom level error causing game loading crash

PTR Discussion and Bug Report
1

Create a new map and set at least one AI player
modify common.ai
Add these two lines of code to the global variable

    constant integer AAA          = 'oalt'   //  must be a four digit code and constant --------------
    integer array cyxx     // must no constant --------------

Add a line of code during initialization

function StandardAI takes code heroes, code peons, code attacks returns nothing

    local boolean isNewbie = (MeleeDifficulty() == MELEE_NEWBIE)

    call InitAI()

    call SetMeleeAI()

    set cyxx[AAA] = 1   // must add here -------------- if add last line of this function, it will crash the first time you enter the game but compilation won't report any errors
    call SetDefendPlayer(true)
   ......  // Original code   --------------
endfunction

The above two modifications , compilation common.ai won’t report any errors

Implant this modified file into the map

You will find that entering the game like this is normal

Immediately save the game after entering it and load this game save file

The program will crash when loading the map, similar to a self-test failure