Comment 23 for bug 854626

Ok, one final suspicion: at
#13 0xae6b11b3 in SwLayoutFrm::~SwLayoutFrm (this=0x8b42e40, __in_chrg=<value
optimized out>)
    at
/data/opt/libreoffice/libreoffice-3-4/sw/source/core/layout/ssfrm.cxx:607

http://cgit.freedesktop.org/libreoffice/writer/tree/sw/source/core/layout/ssfrm.cxx?h=libreoffice-3-4-2#n607
the SwLayoutFrm has already been removed from the layout tree in the line before, so when FindMaster iterates backwards through the tree it cant find its Master, because that is in the other tree. Dunno why this would have worked before then though (maybe by some evil Doc->IsInDtor() magic?)