From 377d147927f8ec5a32ac26db004698f414e5ff24 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Marcel=20Fabian=20Kr=C3=BCger?= <zauguin@gmail.com>
Date: Tue, 7 Jul 2020 05:39:36 +0200
Subject: [PATCH] Fix font sharing

---
 luametalatex-pdf-font-deduplicate.lua | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/luametalatex-pdf-font-deduplicate.lua b/luametalatex-pdf-font-deduplicate.lua
index 4a08d20..2542fed 100644
--- a/luametalatex-pdf-font-deduplicate.lua
+++ b/luametalatex-pdf-font-deduplicate.lua
@@ -31,8 +31,12 @@ local fontmap = setmetatable({}, {
   __index = function(t, fid)
     local key = build_sharekey(assert(fonts[fid]))
     local mapped = keymap[key]
-    local share_parent = mapped and t[mapped] or fid
-    t[fid] = share_parent
+    local share_parent
+    if mapped then
+      share_parent = t[mapped]
+    else
+      share_parent, keymap[key], t[fid] = fid, fid, fid
+    end
     return share_parent
   end,
 })