Upvote:6
You are having post-submission anxiety. This happens when a person submits their application (once the fee has been collected), and then they start to brood over the various possibilities for refusing the application. The pattern for post-submission anxiety invariably leads to panic'd questions on the net.
As seen above and below you have created three accounts within the space of several hours. It's normal for that to happen although three accounts is a bit toppy.
If we say 'yes' it matters, or if we say 'no' it doesn't matter it will make no difference because your application is in the pipeline already. Having said that, and based upon what you wrote (in your four articles above and below), I think you were in breach and the prof who led you to it should be spanked because he should know better. If you wrote it down in your application it probably appears elsewhere and that's a bad thing.
However, you were honest about it in your application and that's a big plus. If your application was otherwise spotless, I don't think it will be a big deal and the ECO will grant a concession in your favour.
Technicalities. If you worked in your room, if you worked out of a personal ambition, if you got paid or just got brownie points with the prof, it's still work and you were in breach if your account of the situation is complete. Trying to mitigate it with all those things hurts you. You signed an agreement with the UK government and were aware of what was happening. All questions should be brought to the Institution's Authorising Officer at the time they arise.
I do not think it will be a show-stopper, but it doesn't matter what I think or what anybody else on the net thinks, the application has gone in! It's post-submission anxiety. There's nothing to be done until the VAC advises you that your passport is ready to collect. Brass it out. And get some sleep. And stop creating new accounts on the site.