From 6a832017f42493c702a7e938b0ebff35e27e6ae8 Mon Sep 17 00:00:00 2001
From: Elie Roux <elie.roux@telecom-bretagne.eu>
Date: Mon, 26 Jan 2015 12:27:51 +0100
Subject: weirdest bug ever...

---
 luatexbase-attr.dtx | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/luatexbase-attr.dtx b/luatexbase-attr.dtx
index 4d2cf2a..528bdaf 100644
--- a/luatexbase-attr.dtx
+++ b/luatexbase-attr.dtx
@@ -307,7 +307,10 @@ See the aforementioned source file(s) for copyright and licensing information.
     \wlog{\string#1=\string\luatexattribute\the\allocationnumber}%
   \else
     \errmessage{No room for a new \string\attribute}%
-  \fi}
+  \fi
+  \global\unsetluatexattribute#1% if you move this line up a little, bad
+  % things happen, see #20
+  }
 %    \end{macrocode}
 %
 %    Helper macro |\unsetluatexattribute|.
@@ -424,7 +427,6 @@ function new_attribute(name, silent)
       tex.setcount('global', luatex_sty_counter, last_alloc)
     end
     attributes[name] = last_alloc
-    unset_attribute(name)
     if not silent then
         log('luatexbase.attributes[%q] = %d', name, last_alloc)
     end
-- 
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