This is some kind of re-opening of #20673.
The implementations done in 3b4a8f3 missed the point.
Getting a runnable query like the following one:

SELECT s0_.name AS name_0 FROM slide s0_ WHERE s0_.id = 'Object(Ramsey\\Uuid\\Uuid): \"363dd322-488e-4a60-8caf-c3cfe51f9d7c\"' LIMIT 1;

is pretty useless, because it's obviously not runnable at all.
What I expect is a query like this one:

SELECT s0_.name AS name_0 FROM slide s0_ WHERE s0_.id = '363dd322-488e-4a60-8caf-c3cfe51f9d7c' LIMIT 1;

that is really runnable (e.g. I can copy&paste in some database client)