Dereference after null check

Either the check against null is unnecessary, or there may be a null pointer dereference. Pointer is checked against null but then dereferenced anyway
/src/third_party/wiredtiger/src/conn/conn_tiered.c:541: FORWARD_NULL 127091 Comparing "conn->tiered_cond" to null implies that "conn->tiered_cond" might be null.