Ungroup problem

[Wilfredor]

Inkscape 0.91 64 bits

Trying ungroup all the elements in the documment, show the follow message:

---------------------------------------
Assertion failed

Program: C:\Program Files\Inkscape\inkscape.exe
File c:\devlibs64/include/boost/optional/optional.hpp, Line 640

Expression: this->is_initialized()

---------------------------------------

The file is a SVG exported from Microsoft Visio and is attached to this report, thanks

[su_v (suv-lp)]

On OS X 10.7.5, crash
- not reproduced with Inkscape 0.48.5
- reproduced with Inkscape 0.91 r13725
- not reproduced with Inkscape 0.91+devel r14212

Closing as 'Fix committed' for now, milestone 0.92.

[su_v (suv-lp)]

Based on tests with archived trunk builds on OS X 10.7.5:
- not reproduced with Inkscape 0.48+devel rev <= 10588,
- reproduced with Inkscape 0.48+devel rev >=10589;
- reproduced with Inkscape 0.91+devel <= 13638,
- not reproduced with Inkscape 0.91+devel rev >= 13646;
the regression (crash) seems to be related to the complete removal of libnr in rev 10589
 http://bazaar.launchpad.net/~inkscape.dev/inkscape/trunk/revision/10589
and to have been fixed in trunk with the merge of the experimental branch in rev 13641
 http://bazaar.launchpad.net/~inkscape.dev/inkscape/trunk/revision/13641

[su_v (suv-lp)]

Attaching full backtrace of Inkscape 0.91.x r13773 debug build (in case someone is interested in backporting a fix from trunk …)

[su_v (suv-lp)]

Inkscape 0.91 also crashes with this file when
- creating a preview image in the GtkFileChooser dialog (on open or import);
or (if preview has been turned off in the file chooser dialog)
- importing the selected file into the currently open document

None of these crashes reproduce with current trunk 0.91+devel r14212.