MikroORM doesn't delete orphans if they have custom type primary key

[lsndr]

Describe the bug I have one to many relation. When I try to remove a child entity from parent's collection (removeOrphans set to true), it does nothing, since it improperly handles custom primary key type.

It runs the following query:

delete from child_entity where id in ('[object Object]')

To Reproduce Here is a repository with a reproduction test https://github.com/lsndr/mikroom-delete-1toM-bug

Expected behavior Child entities must be removed

Versions

Dependency	Version
node	?
typescript	?
mikro-orm	5.6.8
your-driver	?

[lsndr]

At the same time it handles custom primary key types correctly when removeOrphans is set to false

[B4nan]

Thanks for the repro, looks valid.