Risking to repeat myself:
This can only be solved with a real DEV environment.
As a pmdev I can only do static code analysis with one arm bound at behind my back.
And any patches are directly injected into the running system, I have to be available when the gods decide to do so.
That's like a doctor only allowed to scratch dead bodies to find a cure.
A god can log on to the machine and access the living creature, look into the logs and run queries against the DB. A god could find out if a code-snippet is relevant or just abandoned experiment.
A DEV environment would allow to fork the current engine, implement tests and run experiments.
Probably best in a container.
Wishful thinking, I know.
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