validation job does not handle empty rows with static columns

[arvy]

Given the following data, validation job reports missing row (error - 24/09/05 16:29:33 ERROR DiffJobSession: Missing target row found for key: [A %% %% ]):

cqlsh> create keyspace test with replication = {'class':'SimpleStrategy', 'replication_factor': 1};
cqlsh> use test;
cqlsh:test> CREATE TABLE test.test (     pk text,     ck1 text,     ck2 text,     static_col text static,     col text,     PRIMARY KEY (pk, ck1, ck2) );
cqlsh:test> insert into test(pk, ck1, ck2, static_col , col ) values ('A', 'A', 'A', 'shared attribute', 'blah');
cqlsh:test> select * from test.test;

 pk | ck1 | ck2 | static_col       | col
----+-----+-----+------------------+------
  A |   A |   A | shared attribute | blah

(1 rows)
cqlsh:test> delete from test.test where pk = 'A' AND ck1 = 'A' AND ck2 = 'A';
cqlsh:test> select * from test.test ;

 pk | ck1  | ck2  | static_col       | col
----+------+------+------------------+------
  A | null | null | shared attribute | null

(1 rows)

See full job output attached..
problematic-validation.txt