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This has happened several times now:

I'll make a model, then after loading and saving it a bunch of times (for corrections and etc.), Wings will create an error if I try to load it again, thus forcing me to start over.

The dump is as follows:
Dump written 2002-5-3_10-43
Crashed in:
{crash,{function_clause,[{wings_ff_wings,
import_edge,
[6568,
{edge,undefined,
undefined,
{1.00000,1.00000,1.00000},
{1.00000,1.00000,1.00000},
undefined,
undefined,
undefined,
undefined,
undefined,
undefined}]},
{wings_ff_wings,import_edges,4},
{wings_ff_wings,import_objects,4},
{wings_ff_wings,import_objects,2},
{wings_file,read,1},
{wings_file,command,2},
{wings,do_command,2},
{wings_wm,handle_event,3}|
more]}}

Is there any way to recover my file? I didn't do anything. All I did was save it, and the next time I tried to open it, it did this.

The only reason I ask this time is that I worked for quite a while on this model, and it made me really mad for it to suddenly stop working.