ITS#7793 more for branch key update

diff --git a/libraries/liblmdb/mdb.c b/libraries/liblmdb/mdb.c
index d8ac0406c6e055060578b360bff0ce881f00f051..dddfed1c66b7087dd5426d9447cbe90a36d70724 100644 (file)
--- a/libraries/liblmdb/mdb.c
+++ b/libraries/liblmdb/mdb.c
@@ -6063,7 +6063,9 @@ fix_parent:
                        if (mc->mc_top && !mc->mc_ki[mc->mc_top]) {
                                unsigned short top = mc->mc_top;
                                mc->mc_top--;
-                               /* slot 0 is always an empty key, needs no update */
+                               /* slot 0 is always an empty key, find real slot */
+                               while (mc->mc_top && !mc->mc_ki[mc->mc_top])
+                                       mc->mc_top--;
                                if (mc->mc_ki[mc->mc_top])
                                        rc2 = mdb_update_key(mc, key);
                                else