[Freeciv-Dev] (PR#8977) client crash when exiting client

["Jason Short" <jdorje@xxxxxxxxxxxxxxxxxxxxx>]

<URL: http://rt.freeciv.org/Ticket/Display.html?id=8977 >

When exiting a client attached to a running server (launched through the 
conndlg) I get a client crash:

#0  0x080cc0f5 in clear_cache () at cm.c:582
582           if (!cache3.results[i].combinations[j].is_valid) {
(gdb) bt
#0  0x080cc0f5 in clear_cache () at cm.c:582
#1  0x080ce4e5 in cm_free () at cm.c:1457
#2  0x080df31d in game_free () at game.c:334
#3  0x0806e2d9 in client_game_free () at civclient.c:367
#4  0x0806e40a in set_client_state (newstate=CLIENT_PRE_GAME_STATE)
     at civclient.c:422
#5  0x08070d45 in close_socket_nomessage (pc=0x0) at clinet.c:108
#6  0x0807105d in disconnect_from_server () at clinet.c:235
#7  0x080b8610 in game_menu_callback (callback_data=0x0, callback_action=0,
     widget=0x82a1190) at menu.c:219

cache3.results is NULL while MAX_FIELDS_USED is 20.  But I have no idea why.

jason