Comment 4 for bug 1651591

I also think, that there is a memory leak.
I just found one small tool memleax and this is the result:

   0x0000000000e4344d widelands _ZN9Widelands15CmdLuaCoroutine7executeERNS_4Ga()+53 /var/widelands/BZR/production_statistics/src/ui_basic/panel.h:130
    0x0000000000e44901 widelands _ZN9Widelands8CmdQueue9run_queueEiRj()+427 /var/widelands/BZR/production_statistics/src/ui_basic/panel.h:130
    0x0000000000d34427 widelands _ZN9Widelands4Game5thinkEv()+187 /var/widelands/BZR/production_statistics/src/ui_basic/panel.h:130
    0x0000000000f6a105 widelands _ZN15InteractiveBase5thinkEv()+595 /usr/include/c++/6.2.1/bits/stl_iterator_base_funcs.h:103
    0x0000000000f7adba widelands _ZN17InteractivePlayer5thinkEv()+34 /usr/include/c++/6.2.1/bits/stl_iterator_base_funcs.h:103
    0x0000000000ec3fe5 widelands _ZN2UI5Panel8do_thinkEv()+51 /var/widelands/BZR/production_statistics/src/ui_basic/panel.h:130
    0x0000000000ec388b widelands _ZN2UI5Panel6do_runEv()+647 /var/widelands/BZR/production_statistics/src/ui_basic/panel.h:130
    0x0000000000c25a30 widelands _ZN2UI5Panel3runINS0_11ReturncodesEEET_v()+24 /var/widelands/BZR/production_statistics/src/base/vector.h:30
    0x0000000000d34119 widelands _ZN9Widelands4Game3runEPN2UI14ProgressWindowEN()+2225 /var/widelands/BZR/production_statistics/src/ui_basic/panel.h:130
    0x0000000000d33584 widelands _ZN9Widelands4Game13run_load_gameERKNSt7__cxx1()+1162 /var/widelands/BZR/production_statistics/src/ui_basic/panel.h:130
    0x0000000000c2054a widelands _ZN13WLApplication9load_gameEv()+238 /usr/include/c++/6.2.1/bits/hashtable_policy.h:2009
    0x0000000000c1f69e widelands _ZN13WLApplication21mainmenu_singleplayerEv()+130 /usr/include/c++/6.2.1/bits/hashtable_policy.h:2009
    0x0000000000c1f088 widelands _ZN13WLApplication8mainmenuEv()+346 /usr/include/c++/6.2.1/bits/hashtable_policy.h:2009
    0x0000000000c1bbbc widelands _ZN13WLApplication3runEv()+732 /usr/include/c++/6.2.1/bits/hashtable_policy.h:2009
    0x0000000000c1a231 widelands main()+107 /usr/include/c++/6.2.1/bits/hashtable_policy.h:2009

CallStack[49]: may-leak=497 (27832 bytes)
    expired=497 (27832 bytes), free_expired=0 (0 bytes)
    alloc=3143 (176008 bytes), free=0 (0 bytes)
    freed memory live time: min=0 max=0 average=0
    un-freed memory live time: max=11

I would say it points to ui_basic/panel.h:130 what is weird, but who knows... :)