Crashes with 1.0.4

[linearguild]

This doesn't always happen, but I only started seeing these after the update:

libs/libcore_client.so(_ZN10ClientBase14save_backtraceEv+0x5c) [0x7f414d84acfc]
libs/libcore_client.so(_ZN10ClientBase12client_crashEi+0x8) [0x7f414d84aee8]
/lib/libc.so.6 [0x7f4149e3f290]
libs/libmisc.so(_ZNK17DynamicDataStruct15get_sorted_keysEv+0x19) [0x7f414b723cd9]
libs/libmisc.so(_ZN17DynamicDataStruct24show_dynamic_data_structEPKS_iRSo+0x2e7) [0x7f414b72bed7]
libs/libentity_system.so(_ZN7Message4dumpEPKcRSo+0x11a) [0x7f414b8d99ea]
libs/libentity_system.so(_ZN18EntityMessageQueue20show_message_tracingEP7Message+0x4fd) [0x7f414b8eabad]
libs/libentity_system.so(_ZN18EntityMessageQueue17process_a_messageEP7Message+0x2b3) [0x7f414b8ebf53]
libs/libentity_system.so(_ZN18EntityMessageQueue16process_messagesEv+0x108) [0x7f414b8ed748]
libs/libentity_system.so(_ZN12EntitySystem10poll_frameEv+0x1d) [0x7f414b8e600d]
libs/libregnum_client.so(_ZN10GameClient7iterateEv+0x2b) [0x7f414df6891b]
libs/libcore_client.so(_ZN8MainLoop7iterateEv+0xd) [0x7f414d85c41d]
./game(main+0x28e) [0x40127e]
/lib/libc.so.6(__libc_start_main+0xe6) [0x7f4149e2b5c6]
./game(__gxx_personality_v0+0x62) [0x400efa]