Steps to reproduce synchronization bug (typeorm/typeorm#7992)

Run the app by providing 2 env variables - DB_USERNAME and DB_PASSWORD for postgres db connection. Make sure test DB exists in postgres.
In first run it'll create test table with columns id, col1 and col2.
Now if you add another column col3 (of any type) in entites/test.ts Typeorm Entity and restart the app, a new columns will not be added in DB table event though synchronize=true is set in connection.

Name		Name	Last commit message	Last commit date
Latest commit History 4 Commits
entities		entities
db.ts		db.ts
index.ts		index.ts
package-lock.json		package-lock.json
package.json		package.json
readme.md		readme.md
tsconfig.json		tsconfig.json

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