The new magit-blame is really neat.
It would be nice if we could search what it prints, for example to look for a commit number or an author.
Yeah, I guess that would be nice but I don't think this can be implemented without major changes. As far as I know you cannot search (the "text in") overlays. I am closing this but of course if you want to work on it yourself feel free to do so - but I am afraid it would require major refactoring. (If you do please also consider showing the blame info in a margin (or better "parallel buffer" because the marin also isn't searchable) and only blame the visible portion of the file).
To make this happen we need a completely different implementation. One which inserts the headings as actual text not as overlays. It would then be better to use a new buffer, instead of modifying the file-visiting buffer (or one that visits the file at a revision). Doing it this way has other benefits too.
Closing in favour of #1313.