$ git clone -n https://src.fedoraproject.org/rpms/mingetty.git /var/lib/mock/f45-build-18347-514/root/chroot_tmpdir/scmroot/mingetty
Cloning into '/var/lib/mock/f45-build-18347-514/root/chroot_tmpdir/scmroot/mingetty'...
$ git fetch origin 28e5a6d429e86445af4fecfe0bedeaf0503d3b44:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/mingetty
 * [new ref]         28e5a6d429e86445af4fecfe0bedeaf0503d3b44 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 28e5a6d Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild