Fix stale sub-cursor C_INIT flag

Whenever we enter cursor_set() the sub-cursor's flag must be
cleared. If the new cursor position has valid subdata it will
be initialized again, if not then the sub-cursor has nothing
to point to.

diff --git a/libraries/liblmdb/mdb.c b/libraries/liblmdb/mdb.c
index df88adc..3f8dc73 100644 (file)
--- a/libraries/liblmdb/mdb.c
+++ b/libraries/liblmdb/mdb.c
@@ -4856,6 +4856,9 @@ mdb_cursor_set(MDB_cursor *mc, MDB_val *key, MDB_val *data,
        assert(key);
        assert(key->mv_size > 0);
 
+       if (mc->mc_db->md_flags & MDB_DUPSORT)
+               mc->mc_xcursor->mx_cursor.mc_flags &= ~(C_INITIALIZED|C_EOF);
+
        /* See if we're already on the right page */
        if (mc->mc_flags & C_INITIALIZED) {
                MDB_val nodekey;