$ git clone -n https://src.fedoraproject.org/rpms/perl-Reaper.git /var/lib/mock/f45-build-26008-614/root/chroot_tmpdir/scmroot/perl-Reaper
Cloning into '/var/lib/mock/f45-build-26008-614/root/chroot_tmpdir/scmroot/perl-Reaper'...
$ git fetch origin 8eb1dcf3628ee031c2350368cb1cdb4f4e970406:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/perl-Reaper
 * [new ref]         8eb1dcf3628ee031c2350368cb1cdb4f4e970406 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 8eb1dcf Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild