Clarify why we can't do 'git rev-list' with a path.

diff --git a/git-subtree.sh b/git-subtree.sh
index 8b797dfc23c8cfe7c5f7f4dea877be0dda45c87e..19ac2ef1c14aec87c9e91eb175e0319aab60122c 100755 (executable)
--- a/git-subtree.sh
+++ b/git-subtree.sh
@@ -338,9 +338,9 @@ cmd_split()
                unrevs="$(find_existing_splits "$dir" "$revs")"
        fi
        
-       # We can't restrict rev-list to only "$dir" here, because that leaves out
-       # critical information about commit parents.
-       debug "git rev-list --reverse --parents $revs $unrevs"
+       # We can't restrict rev-list to only $dir here, because some of our
+       # parents have the $dir contents the root, and those won't match.
+       # (and rev-list --follow doesn't seem to solve this)
        git rev-list --reverse --parents $revs $unrevs |
        while read rev parents; do
                debug