Jeff King <peff@xxxxxxxx> writes: > It does make me wonder if there other gaps for reflogs that point to > non-commits. E.g., if I have a tag pointing to a blob, would we save its > reflog entry if a reachable commit points to that blob?. I suspect not, > as the full reachability check is very expensive. reflog.c:should_expire_reflog_ent() says that anything that is not a commit should be expired without doing the unreachable() check, and the UE_ALWAYS flag used for that is set by the function in question. This arrangement has stayed the same since daf1d828 (reflog expire: don't use lookup_commit_reference_gently(), 2021-12-22). Thanks.
