[Freeciv] Client crash

[Mikko Särelä <msarela@xxxxxxxxx>]

Using the latest CVS-version the client crashes followingly:

An explorer gets a hut. The message saying what was gotten is empty. If
one now continues play without clicking that message out, the client
crashes with following error:

civclient: messagewin_common.c:166: get_message: Assertion `message_index
>= 0 && message_index < messages_total' failed.
Abort

-- 
Mikko        "One Ring to rule them all,
              One Ring to find them,
              One Ring to bring them all
              And in the Darkness bind them."