$ git clone -n https://src.fedoraproject.org/rpms/perl-HTTP-Soup.git /var/lib/mock/f41-build-816608-150289/root/chroot_tmpdir/scmroot/perl-HTTP-Soup
Cloning into '/var/lib/mock/f41-build-816608-150289/root/chroot_tmpdir/scmroot/perl-HTTP-Soup'...
$ git fetch origin 825a21d5d97b5c3b73473eb100b3e0365eb18bb8:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/perl-HTTP-Soup
 * [new ref]         825a21d5d97b5c3b73473eb100b3e0365eb18bb8 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 825a21d Perl 5.40 rebuild