Import bug (fatal error): SQL Developer 4.1EA2 drops destination table upon rollback after error

Question

I created a table in the worksheet and then I tried to import data into is using SQL Developer EA2. After error is raised, I was presented with the error on the screenshot below. (Note: Rightmost button stands for "Cancel") By choosing cancel (i.e. Click cancel to cancel and rollback.) my destination table is dropped to recycle bin. Rollback should not undo any DDL even when the table was created using the import wizard. But purging a table that was not created by the import wizard is a fatal error.
Steps to reproduce:
create the destination table from worksheet and check if it was created:
column table_name format a21
create table test_imp_rollback_bug(dummy number(2));
insert into test_imp_rollback_bug values (-1);
commit;
select table_name from user_tables where table_name='TEST_IMP_ROLLBACK_BUG';
--Result:
TABLE_NAME
TEST_IMP_ROLLBACK_BUG
import CSV using the import settings attached, To achieve this, utilize the new Restore state of the SQL Developer's import wizard. Note: you might need to adjust schema of the destination table.
test_imp_rollback_bug_numbers.csv
test_imp_rollback_bug-import_settings.sdimp
Upon "Insert failed for rows  1  through  50 " message presented, click Cancel.
The table does not exists any more:
select table_name from user_tables where table_name='TEST_IMP_ROLLBACK_BUG';
--Result:
no rows selected
Edit (jmarton, 2015-04-26):
Software versions used:
SQL Developer version: 4.1.0.18.37
Oracle JDK: 1.8.0_31, 64bit, Linux
Instant client: linux.x64-12.1.0.2.0
Database: 12cR1 12.1.0.2.0 64bit, Linux, EE, CDB-install

Answer 1

select table_name from user_tables where table_name='TEST_IMP_ROLLBACK_BUG'; 
--Result: 
no rows selected
>>Note: you might need to adjust schema of the destination table.
A rollback won't drop a table. Are you sure the tale isn't there? select from dba_tables or all_tables, assuming you had to change the destination schema as indicated in your test notes.