Le 02/12/11 22:21, rgh...@lyx.org a écrit :
+                       // FIXME If the branch is in the master document, we 
cannot
+                       // call recordUndo..., becuase the master may be 
hidden, and
+                       // the code presently assumes that hidden documents can 
never
+                       // be dirty. See GuiView::closeBufferAll(), for example.
+                       if (!branch_in_master)
+                               buffer().undo().recordUndoFullDocument(cur);

Can you check whether the buffer is hidden?

JMarc

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