sub-fetches discard --ipv4|6 option

Hi everyone,

I have a slight problem with IPv6 configuration in my local network (connect
works but transfers do not) and would like to temporarily disable use of the
transport for a series of fetches. The fetches are all done from within a
script to which I can pass options for "git fetch" commands in its
command-line. The options will be appended to the fetch commands, i.e.:

    git fetch <hard-coded-script-options> --ipv4

Unfortunately, it only worked for the fetches which didn't use --all or
--multiple. After a light searching, I failed to find an explanation as to
why --all|--multiple are handled so inconsistently with single remote fetches
and added the options (similar to --force or --keep) to the argument list for
sub-fetches:

diff --git a/builtin/fetch.c b/builtin/fetch.c
index 82ac4be8a5..5e06c07106 100644
--- a/builtin/fetch.c
+++ b/builtin/fetch.c

@@ -1531,6 +1531,10 @@ static void add_options_to_argv(struct argv_array *argv)
 		argv_array_push(argv, "-v");
 	else if (verbosity < 0)
 		argv_array_push(argv, "-q");
+	if (family == TRANSPORT_FAMILY_IPV4)
+		argv_array_push(argv, "--ipv4");
+	else if (family == TRANSPORT_FAMILY_IPV6)
+		argv_array_push(argv, "--ipv6");
 
 }
 

Am I missing something obvious?

Regards,
Alex