I go through the same thing but with a few "popular" GitHub issues. Every time I encounter those bugs I Google it and the first result in my comment on the issue that explains the workaround I used.
I sometimes have to go back to GitHub issues I created, that I bookmarked for this specific reason.
I think that the Internet has modified how our brains retain information. I don't think this is an original idea, but I've observed that I'm real good at indexing where I saw some piece of information and very poor at storing the actual piece of information. I have to physically write things down to commit them to recallable memory.
Physically writing things has been a useful tool to increase recall for a long time. Taking notes in class may be more helpful than reviewing them later.
Certainly, quick access to information with a small search query helps tune our brains to get small search queries, but do some filing for a day or three and your brain will get tuned to quick recall there too. In the old days, you'd get real familiar with certain parts of books.
I suspect our brains have always been better at remembering meta-information than information itself. E.g. where you last saw an item of clothing vs the configuration of colours on it. In most cases this makes sense, and is essentially a space-saving trick, but there must be some point at which the meta-info becomes too inaccessible or too slow to utilise that remembering the full detail directly becomes worthwhile. Convincing your brain of that before it becomes too late can be a regular challenge with so much readily available externally stored information.
That's probably how early Alzheimer feels.