[Freeciv-Dev] attribute core 1.13.1 -> 1.13.0

["Per I. Mathisen" <per@xxxxxxxxxxx>]

Connecting an 1.13.1 client to an 1.13.0 server I get this core dump.
Anyone figure a guess on what is going on?

Program received signal SIGABRT, Aborted.
[Switching to Thread 1024 (LWP 6538)]
0x404a3781 in kill () from /lib/libc.so.6
(gdb) bt
#0  0x404a3781 in kill () from /lib/libc.so.6
#1  0x40433e5e in pthread_kill () from /lib/libpthread.so.0
#2  0x40434339 in raise () from /lib/libpthread.so.0
#3  0x404a4be1 in abort () from /lib/libc.so.6
#4  0x4049de42 in __assert_fail () from /lib/libc.so.6
#5  0x0805fdf6 in unserialize_hash (hash=0x83113c0, data=0x831c0f8,
data_length=892)
    at attribute.c:193
#6  0x0805ff87 in attribute_restore () at attribute.c:253
#7  0x0806f5e3 in handle_player_attribute_chunk (chunk=0x831b8e8) at
packhand.c:2265
#8  0x08061819 in handle_packet_input (packet=0x831b8e8, type=90) at
civclient.c:430
#9  0x080646a0 in input_from_server (fd=15) at clinet.c:325
#10 0x0808ec7d in get_net_input (data=0x0, fid=15,
condition=GDK_INPUT_READ)
    at gui_main.c:1067
#11 0x4025e0de in gdk_get_show_events () from /usr/lib/libgdk-1.2.so.0
#12 0x4028ec40 in g_io_add_watch () from /usr/lib/libglib-1.2.so.0
#13 0x40290309 in g_get_current_time () from /usr/lib/libglib-1.2.so.0
#14 0x40290913 in g_get_current_time () from /usr/lib/libglib-1.2.so.0
#15 0x40290aac in g_main_run () from /usr/lib/libglib-1.2.so.0
#16 0x401a3e37 in gtk_main () from /usr/lib/libgtk-1.2.so.0
#17 0x0808e7fe in ui_main (argc=1, argv=0xbffffad4) at gui_main.c:892
#18 0x080614e3 in main (argc=1, argv=0xbffffad4) at civclient.c:225

Yours
Per