Based on my experience, these problems are not so much technical as political. It rarely gets to the stage where you openly contest your boss saying, "I wrote i

Based on my experience, these problems are not so much technical as political. It rarely gets to the stage where you openly contest your boss saying, "I wrote it, not you, and I can prove it" - because it is often trivial to prove, especially nowadays. But in general you say nothing because you want to keep the job.