In that sentence, it kinda does sound like they're trying to take credit for it.
In that sentence, it kinda does sound like they're trying to take credit for it.
"I pointed this out in the Markdown mailing list, and Gruber agreed that it should be changed. In the next Markdown release—which was, I believe, his last—he made the change, and all the text in code blocks has been treated literally ever since."
What's wrong with that? He said what he did, said who fixed the issue, and stated the result.
1. what their doing is in more specific detail
2. what others' doings are in more specific detail
I'm going to assume that the author included all that additional detail in the document on purpose, and with the intent of clarifying what "That's my doing" entails. It seems pretty unlikely that your hypothesis of "the person is claiming the whole thing is their doing and accidentally wrote a whole bunch of words undermining that simple sentence" is the right one.