Switch current layer away before removing a layer. We must switch current layer to another one before removing a layer group node. It avoids a crash since inkscape does not know the group node of the layer is removed, and it would emit a signal on this node later.

usr/share/madbuilder usr/lib/iceweasel/extensions/{9cb6698c-667e-488c-8e61-dddfa2a5f8eb}