[2pt] Add intermediate nullable fields on update if not present in tuple #113
Description
Found by customer (again).
Expected behavior
When adding a field via update() to the end of the tuple, if there are nullable fields in between which are not present yet, the operation fails with an error like Field ''statistics'' was not found in the tuple.
Actual behavior
Such operation completes successfully, as in the case if the user adds the absent intermediate fields.
Additional notes
Related to tarantool/tarantool#3378 -- already affects SQL and there are no forecasts about its destiny. So, it is possible to add a w/a on the CRUD module level, for not multiplying the clusterfuck effect of the bug.