Copy a new version of a table from Test to Dev and then you have to recreate or adjust the associated sequence. My proposed syntax would be
ALTER SEQUENCE blah_seq SYNCHRONIZE WITH blah_table (blah_column);
That would lock the table, get the highest value of 'blah_column' and reset the 'last_number' of the sequence to that value. Even better, retain the fact that the sequence has been synchronized with that table/column so there is some metadata about the relationship.