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Fix crash when closing master with children and grandchildren
In some cases, it is possible that the BufferPositionMap has dangling pointers. We thus check whether the Buffer is loaded before accessing it. Fixes: #10766
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@ -3720,8 +3720,12 @@ void Buffer::listMacroNames(MacroNameSet & macros) const
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// loop over children
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Impl::BufferPositionMap::iterator it = d->children_positions.begin();
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Impl::BufferPositionMap::iterator end = d->children_positions.end();
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for (; it != end; ++it)
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it->first->listMacroNames(macros);
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for (; it != end; ++it) {
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Buffer * child = const_cast<Buffer *>(it->first);
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// The buffer might have been closed (see #10766).
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if (theBufferList().isLoaded(child))
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child->listMacroNames(macros);
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}
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// call parent
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Buffer const * const pbuf = d->parent();
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