Since we're all giving replacements to this, nobody's mentioned my preferred one, so: use git add's patch mode. On a clean worktree, do the search/replace in bulk. Then use `git add --patch` to selectively add the good replacements and skip the bad ones. Finally, `git checkout -- .` to throw away all the bad ones. The nice part about this is that it's not much to remember. If you can make a global search and replace, and you can use `git add --patch` (which is useful loads of times), you can do a selective search and replace by combining them.
As far as this actual tool: the demo GIF is way too fast-paced to show what's going on. A better demo would maybe search "ring", have 10 or so results instead of pages and pages, and show how you can unselect "spring" matches which were unintentionally caught.
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