WT-4580 introduced a change where updates with ignore_prepare=true will return an error. This will break MongoDB in a few places that currently have to perform writes while ignoring prepared updates.
WT-4580 work with MongoDB, we will first add support for ignore_prepare=force, which ignores prepared transactions but also allow writes.
Once this is implemented, we can identify the places in MongoDB where ignore_prepare=force is required and then merge
WT-4580 into master.