Mark AndrewsandMichał Kępień
d4d64ded76
RBTDB node can now appear on the deadnodes lists following the changes
to decrement_reference in 4db29f1f7d to
defer checking of node->down when the tree write lock is not held. The
node should be unlinked instead.
(cherry picked from commit 569cc155b8680d8ed12db1fabbe20947db24a0f9)