ds are not working/tested (some examples in the
git-filter-branch manpage are also affected by this).  BSD vs. GNU
userland differences can really bite.  If lucky, error messages are
spewed.  But just as likely, the commands either don&#8217;t do the filtering
requested, or silently corrupt by making some unwanted change.  The
unwanted change may only affect a few commits, so it&#8217;s not necessarily
obvious either.  (The fact that problems won&#8217;t necessarily be obvious
means they are likely to go un