Ai and machine Spirit why not both?

So we all know that AI is a big no no for the mechanicus and really just the imperium in general. The mechanicus also see machines and their machine spirits as holy. With stc's being at like the top of that list.

So realistically what would the mechanicus do if an AI had a machine spirit? Would the machine Spirit not matter because the AI is still an abominable intelligence? or would the AI just not be seen as heretical because it has a machine spirit?

Additionally if STC's are super important to the mechanicus especially a theoretical complete STC and they would do almost anything to get their grabby little macadendrites on them. How would they react to such an important/valued part of their religion/lost technology be viewed when it has an AI in it?