$ git clone -n https://src.fedoraproject.org/rpms/python-fedmsg-meta-fedora-infrastructure.git /var/lib/mock/f41-build-side-1-2906175-34718/root/chroot_tmpdir/scmroot/python-fedmsg-meta-fedora-infrastructure
Cloning into '/var/lib/mock/f41-build-side-1-2906175-34718/root/chroot_tmpdir/scmroot/python-fedmsg-meta-fedora-infrastructure'...
$ git fetch origin 65db5ebc89551489a0104d0617e8a94e928340fc:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/python-fedmsg-meta-fedora-infrastructure
 * [new ref]         65db5ebc89551489a0104d0617e8a94e928340fc -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 65db5eb Retired: https://pagure.io/releng/issue/12387