Kart profiling triggers an assert in Debug builds

[kimden]

Description

I tried to run some automatic profiling, for that I wanted to invoke the following command

bin/supertuxkart --disable-addon-karts --disable-addon-tracks --profile-laps=1 --aiNP=pidgin --track=black_forest

(Let me know if that's a wrong command.)

It appears it works in Release and RelWithDebInfo builds, but not in Debug mode, where it throws the following:

supertuxkart: /folder/src/race/race_manager.cpp:460: void RaceManager::startNew(bool): Assertion `(unsigned int)m_num_karts == m_num_ghost_karts+m_ai_kart_list.size()+m_player_karts.size()' failed.

Steps to reproduce

Run the command above in both Release build and Debug build.

Configuration

STK release version: latest git b180a49

Backtrace of the part that doesn't handle assert

#7  0x00005efb59356bdd in RaceManager::startNew (this=0x5efb5b4c8b60, from_overworld=false)
    at /folder/src/race/race_manager.cpp:460
#8  0x00005efb591a835e in main (argc=6, argv=0x7fff357ead08) at /folder/src/main.cpp:2619