Fix bug #6603.

The problem was that the child buffers were closed,
and therefore the TOC contained dangling pointers.
The fix is simple: Reopen all child docs and create a new TOC.


git-svn-id: svn://svn.lyx.org/lyx/lyx-devel/trunk@36766 a592a061-630c-0410-9148-cb99ea01b6c8

src/frontends/qt4/GuiView.cpp

@@ -2497,6 +2497,11 @@ bool GuiView::closeBuffer(Buffer & buf)
 		theBufferList().release(&buf);
 		return true;
 	}
+	// open all children again to avoid a crash (bug 6603)
+	// FIXME updateMacros() does more than needed
+	buf.updateMacros();
+	// get rid of dangling inset pointers in TOC (bug 6603)
+	buf.tocBackend().update();
 	return false;
 }