$ git clone -n https://src.fedoraproject.org/rpms/perl-Config-Auto.git /var/lib/mock/f45-build-22462-591/root/chroot_tmpdir/scmroot/perl-Config-Auto
Cloning into '/var/lib/mock/f45-build-22462-591/root/chroot_tmpdir/scmroot/perl-Config-Auto'...
$ git fetch origin 88aa48ea8dc88494ef71ab20620fb6dac9c62719:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/perl-Config-Auto
 * [new ref]         88aa48ea8dc88494ef71ab20620fb6dac9c62719 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 88aa48e Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild