commit 5cab0709a4f7267a01eb6f254c02d8bbcb4832e6
author Qunxin Liu <qxliu@google.com> Wed Jul 26 09:56:07 2023 -0700
committer Qunxin Liu <qxliu@google.com> Wed Jul 26 10:09:27 2023 -0700
tree df3bdd0df9dcc9208d4d6fee0a2b0c0b26030ea5
parent 515f85d545debf3c769b6aa7aa8c90908ce2f7f6

[instancer] fix for missing to update tuple indices flag in operator +=

src/hb-ot-var-common.hh

diff --git a/src/hb-ot-var-common.hh b/src/hb-ot-var-common.hh
index c9fed04..a3b316b 100644
--- a/src/hb-ot-var-common.hh
+++ b/src/hb-ot-var-common.hh
@@ -508,6 +508,7 @@
       else
       {
         if (!o.indices.arrayZ[i]) continue;
+        indices.arrayZ[i] = true;
         deltas_x[i] = o.deltas_x[i];
         if (deltas_y && o.deltas_y)
           deltas_y[i] = o.deltas_y[i];