test: bulk inserting 2 docs with same primary key

[enrico-teterra-maramalabs]

This PR contains:

a failing test

Describe the problem you have without this PR

bulk inserting 2 docs with same primary key should throw conflict error
instead, the collection now contains 2 docs with the same primary key

example:

• given a collection: people has a primary key: id
• when people.bulkInsert({id: 1, name: bob}, {id: 1, name: jane})
• then the bulkInsert is successful and now i have 2 records with the same primary key in the collection
• people.count().exec() is 2

[pubkey]

Thank you for reporting. I added a fix. I think the correct behavior should be to just throw, RxDB should not be used in that way and the user should ensure bulk opertions do not have duplicates in them.

[enrico-teterra-maramalabs]

yep throwing an error in this case seems fine! thanks