$ git clone -n https://src.fedoraproject.org/rpms/perl-Badger.git /var/lib/mock/f45-build-21850-588/root/chroot_tmpdir/scmroot/perl-Badger
Cloning into '/var/lib/mock/f45-build-21850-588/root/chroot_tmpdir/scmroot/perl-Badger'...
$ git fetch origin 82282c12335e0ccdcda2befdc485fd0cf01381a3:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/perl-Badger
 * [new ref]         82282c12335e0ccdcda2befdc485fd0cf01381a3 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 82282c1 Initial specfile