crash on "save a copy as" when document has no filename yet

[theAdib]

how to reproduce
-open inkscape
-draw something (a rectangle)
-"save copy as" (I do select an existing file and use pdf as output format)
-continue the export dialog
-before returning inkscape it crashes

attached the backtrace
Program received signal SIGSEGV, Segmentation fault.
[Switching to Thread 0xb67fb720 (LWP 14770)]
0xb725c0cb in g_utf8_validate () from /usr/lib/libglib-2.0.so.0
(gdb) bt
#0 0xb725c0cb in g_utf8_validate () from /usr/lib/libglib-2.0.so.0
#1 0xb72149be in ?? () from /usr/lib/libglib-2.0.so.0
#2 0xb72151b9 in g_filename_from_utf8 () from /usr/lib/libglib-2.0.so.0
#3 0x08096260 in sp_file_add_recent (uri=0xb72a7ff4 "�^\v") at file.cpp:93
#4 0x08098767 in sp_file_save_dialog (parentWindow=@0xa420f50, doc=0x96cbf60, is_copy=false) at file.cpp:817
#5 0x08234f0d in sp_action_perform (action=0x96d1dc8, data=0x0) at helper/action.cpp:181

[theAdib (theadib)]

this might only happen if no filename is assigned

[jazzynico (jazzynico)]

Confirmed on Windows XP, build 21236.
Also crashes when saving copy as SVG or PNG (and probably with the other file formats).
The crash appears after saving the file correctly.
Works well with 0.46, so I mark it as regression.

[theAdib (theadib)]

fix committed in svn revision 21257