Crash when copying or cutting an orphaned clone to clipboard (rev >= 14309)

[su_v]

If an orhpaned clone is among selected objects copied or cut to the clipboard, current trunk crashes. First encountered when attempting to copy the content (selected with Ctrl+A) of the current icons.svg file.

Steps to reproduce:
1) launch current trunk (default new prefs, default new doc (en_US))
2) draw a rect
3) create a clone (Alt+D)
4) select original rect again
4) open Object Properties
5) change the ID --> orphans the clone
6) select all (or just the orphaned clone) and copy (Ctrl+C) or cut (Ctrl+X)

--> Inkscape crashes:
Program received signal EXC_BAD_ACCESS, Could not access memory.
Reason: KERN_INVALID_ADDRESS at address: 0x0000000000000068
0x0000000100b10d1b in Inkscape::UI::ClipboardManagerImpl::_copyUsedDefs (this=0x1102a51f0, item=0x0) at clipboard.cpp:768
768 SPStyle *style = item->style;

Reproduced with latest trunk (0.91+devel r14758) on OS X 10.7.5.

Based on tests with archived builds:
- not reproduced with rev <= 14308,
- reproduced with rev >= 14309;
this regression is likely exposed by changes for bug #167907 in
Rev 14309: Allows for copying clones between inkscape instances.
https://bazaar.launchpad.net/~inkscape.dev/inkscape/trunk/revision/14309

[Mc (mc...)]

thanks for the report ! Fixed in 14759

[su_v (suv-lp)]

@Mc - thanks for the quick fix!

> ** Changed in: inkscape
> Status: New => Fix Released
>
> ** Changed in: inkscape
> Milestone: None => 0.92

The milestone should be removed (crash was never part of a stable
release; and 0.92 has not been released yet either).