Dereference before null check

There may be a null pointer dereference, or else the comparison against null is unnecessary. All paths that lead to this null pointer comparison already dereference the pointer earlier
/data/bazel_cache/1de52aaeb35278243ca29a4785ce7969/execroot/_main/src/mongo/db/op_debug.cpp:177: REVERSE_INULL 173263 Null-checking "client" suggests that it may be null, but it has already been dereferenced on all paths leading to the check.