$ git clone -n https://src.fedoraproject.org/rpms/pass.git /var/lib/mock/f45-build-21417-584/root/chroot_tmpdir/scmroot/pass
Cloning into '/var/lib/mock/f45-build-21417-584/root/chroot_tmpdir/scmroot/pass'...
$ git fetch origin 694f6d814cc05385b3bb68b51b460bd2180625eb:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/pass
 * [new ref]         694f6d814cc05385b3bb68b51b460bd2180625eb -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 694f6d8 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild