[fixed] Wings3D crash in AutoUV edit.

[tkbd]

I got some crash logs with AutoUV edit operation.
It happend on UV remapping.

Dump written 2021-11-3_19-50
Version: 2.2.7
Window: {autouv,1}
Reason: badarith

Stack trace:
[{auv_mapping,calc_scale,6,[{file,"auv_mapping.erl"},{line,1195}]},
{auv_mapping,stretch_setup,3,[{file,"auv_mapping.erl"},{line,1046}]},
{auv_mapping,stretch_opt,2,[{file,"auv_mapping.erl"},{line,1024}]},
{wpc_autouv,'-remap/2-fun-3-',6,[{file,"wpc_autouv.erl"},{line,1901}]},
{wings_sel,mapfold_1,6,[{file,"wings_sel.erl"},{line,636}]},
{wings_sel,mapfold,3,[{file,"wings_sel.erl"},{line,289}]},
{wpc_autouv,remap,2,[{file,"wpc_autouv.erl"},{line,1903}]},
{wpc_autouv,handle_command_1,2,[{file,"wpc_autouv.erl"},{line,862}]},
{wpc_autouv,handle_command,2,[{file,"wpc_autouv.erl"},{line,850}]},
{wings_wm,handle_event,3,[{file,"wings_wm.erl"},{line,1031}]},
{wings_wm,send_event,2,[{file,"wings_wm.erl"},{line,998}]},
{wings_wm,do_dispatch,2,[{file,"wings_wm.erl"},{line,890}]},
{wings_wm,dispatch_event,1,[{file,"wings_wm.erl"},{line,799}]},
{wings_wm,get_and_dispatch,0,[{file,"wings_wm.erl"},{line,685}]},
{wings,init_part2,3,[{file,"wings.erl"},{line,108}]},
{proc_lib,init_p_do_apply,3,[{file,"proc_lib.erl"},{line,226}]}]

OS: macOS Mojave Version 10.14.6 (Build 18G9323)
GPU: Intel Inc. | Intel Iris OpenGL Engine

Another crash happend on uniform UV scale to max

Dump written 2021-11-3_22-7
Version: 2.2.7
Window: {autouv,1}
Reason: badarith

Stack trace:
[{wpc_autouv,stretch,2,[{file,"wpc_autouv.erl"},{line,1832}]},
{wings_sel,map_1,5,[{file,"wings_sel.erl"},{line,589}]},
{wings_sel,map,2,[{file,"wings_sel.erl"},{line,125}]},
{wpc_autouv,handle_command_1,2,[{file,"wpc_autouv.erl"},{line,875}]},
{wpc_autouv,handle_command,2,[{file,"wpc_autouv.erl"},{line,850}]},
{wings_wm,handle_event,3,[{file,"wings_wm.erl"},{line,1031}]},
{wings_wm,send_event,2,[{file,"wings_wm.erl"},{line,998}]},
{wings_wm,do_dispatch,2,[{file,"wings_wm.erl"},{line,890}]},
{wings_wm,dispatch_event,1,[{file,"wings_wm.erl"},{line,799}]},
{wings_wm,get_and_dispatch,0,[{file,"wings_wm.erl"},{line,685}]},
{wings,init_part2,3,[{file,"wings.erl"},{line,108}]},
{proc_lib,init_p_do_apply,3,[{file,"proc_lib.erl"},{line,226}]}]

OS: macOS Mojave Version 10.14.6 (Build 18G9323)
GPU: Intel Inc. | Intel Iris OpenGL Engine

Last one of crash, I have been forgot the details.
Perhaps the drag occurred trying to select a window....

Dump written 2021-11-14_21-11
Version: 2.2.7
Window: [wings_geom_win,<0.103.0>]
Reason: {case_clause,command_list_begin_drag}

Stack trace:
[{wings_geom_win,handle_event,2,[{file,"wings_geom_win.erl"},{line,507}]},
{wx_object,handle_msg,5,[{file,"wx_object.erl"},{line,500}]},
{proc_lib,init_p_do_apply,3,[{file,"proc_lib.erl"},{line,226}]}]

Best Regard!