remote: implement opportunistic remote-tracking branch updatescmn/remote-fetch-refs

When a list of refspecs is passed to fetch (what git would consider
refspec passed on the command-line), we not only need to perform the
updates described in that refspec, but also update the remote-tracking
branch of the fetched remote heads according to the remote's configured
refspecs.

These "fetches" are not however to be written to FETCH_HEAD as they
would be duplicate data, and it's not what the user asked for.

1 files changed, 1 insertions, 0 deletions

diff --git a/src/remote.h b/src/remote.h
index 73c1614f6..b79ace438 100644
--- a/src/remote.h
+++ b/src/remote.h
@@ -33,6 +33,7 @@ struct git_remote {
 	unsigned int need_pack;
 	git_remote_autotag_option_t download_tags;
 	int update_fetchhead;
+	int passed_refspecs;
 };
 
 const char* git_remote__urlfordirection(struct git_remote *remote, int direction);