$ git clone -n https://src.fedoraproject.org/rpms/pps-tools.git /var/lib/mock/f45-build-28881-633/root/chroot_tmpdir/scmroot/pps-tools
Cloning into '/var/lib/mock/f45-build-28881-633/root/chroot_tmpdir/scmroot/pps-tools'...
$ git fetch origin e57c4ea13b6799240d58a6c77b7bb900935c0058:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/pps-tools
 * [new ref]         e57c4ea13b6799240d58a6c77b7bb900935c0058 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at e57c4ea Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild