$ git clone -n https://src.fedoraproject.org/rpms/pam_url.git /var/lib/mock/f45-build-21332-583/root/chroot_tmpdir/scmroot/pam_url
Cloning into '/var/lib/mock/f45-build-21332-583/root/chroot_tmpdir/scmroot/pam_url'...
$ git fetch origin 64ec907548220cc48ddd1b7a43e62a79583c2771:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/pam_url
 * [new ref]         64ec907548220cc48ddd1b7a43e62a79583c2771 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 64ec907 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild