Re: [bug] blame duplicates trailing ">" in mailmapped emails

Jeff King [off-list ref] writes:

We could also go as far as saying that map_user would _always_ terminate
in this way (i.e., the caller gets a munged result, whether we found
anything or not). Then internally, map_user could be simplified to stop
worrying about making a temporary copy in mailbuf. And callers could
simply call map_user without worrying about branching on whether it
found anything or not.

I thought about it, but such a change needs to audit all the call sites
that assumes the promise original map_user() used to make before it was
broken. If we return 0 to the caller, the caller does not have to worry
about map_user() munging the buffer it lent to it.

It might be a worthwhile thing to do. I dunno; I didn't look into it.