$ git clone -n https://src.fedoraproject.org/rpms/marisa.git /var/lib/mock/f41-build-813934-148824/root/chroot_tmpdir/scmroot/marisa
Cloning into '/var/lib/mock/f41-build-813934-148824/root/chroot_tmpdir/scmroot/marisa'...
$ git fetch origin fecdc90517fdcf38de1c9e321b8714bd675f85da:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/marisa
 * [new ref]         fecdc90517fdcf38de1c9e321b8714bd675f85da -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at fecdc90 Perl 5.40 rebuild