@UpdateDateColumn() rendered pretty pointless with recent change

[acuthbert]

Issue Description

Expected Behavior

const entity = await repos.findOne({..someFindOptions});
entity.this = "that";
await repos.save(entity);

I would expect that the updatedDate column in this entity (using the @UpdateDateColumn decorator) would cause the entitys updated date to be modified.

Actual Behavior

The date is not updated because a change now allows the updated date to be manually provided. This is useful in some cases (e.g. data migration scripts) but more often we just want to load, modify and save. This basic use case is broken by the changes discussed here:

#3271

and highlighted here:

#3271 (comment)

Steps to Reproduce

const entity = await repos.findById(3);
entity.this = "that";
await repos.save(entity);

My Environment

Dependency	Version
Operating System	Ubuntu 22
Node.js version	16.15.1
Typescript version	4.7.4
TypeORM version	0.2.45

Relevant Database Driver(s)

DB Type	Reproducible
aurora-mysql	no
aurora-postgres	no
better-sqlite3	no
cockroachdb	no
cordova	no
expo	no
mongodb	no
mysql	yes
nativescript	no
oracle	no
postgres	no
react-native	no
sap	no
spanner	no
sqlite	no
sqlite-abstract	no
sqljs	no
sqlserver	no

Are you willing to resolve this issue by submitting a Pull Request?

• ✖️ Yes, I have the time, and I know how to start.
• ✅ Yes, I have the time, but I don't know how to start. I would need guidance.
• ✖️ No, I don’t have the time, but I can support (using donations) development.
• ✖️ No, I don’t have the time and I’m okay to wait for the community / maintainers to resolve this issue.