an alternative to git-filter-branch which does not suffer from these
performance problems or the safety problems (mentioned below). For those
with existing tooling which relies upon git-filter-branch, 'git
-repo-filter' also provides
+filter-repo' also provides
https://github.com/newren/git-filter-repo/blob/master/contrib/filter-repo-demos/filter-lamely[filter-lamely],
a drop-in git-filter-branch replacement (with a few caveats). While
filter-lamely suffers from all the same safety issues as