$ git clone -n https://src.fedoraproject.org/rpms/perl-Module-Pluggable.git /var/lib/mock/f45-build-24914-607/root/chroot_tmpdir/scmroot/perl-Module-Pluggable
Cloning into '/var/lib/mock/f45-build-24914-607/root/chroot_tmpdir/scmroot/perl-Module-Pluggable'...
$ git fetch origin 8b3e2a2d91c17d79fc8361f6eb236df3c0e11165:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/perl-Module-Pluggable
 * [new ref]         8b3e2a2d91c17d79fc8361f6eb236df3c0e11165 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 8b3e2a2 Update to 6.4