$ git clone -n https://src.fedoraproject.org/rpms/perl-Clone-Choose.git /var/lib/mock/f45-build-22405-591/root/chroot_tmpdir/scmroot/perl-Clone-Choose
Cloning into '/var/lib/mock/f45-build-22405-591/root/chroot_tmpdir/scmroot/perl-Clone-Choose'...
$ git fetch origin ce3a5716b52a4108edfa6213164013c1b5101b34:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/perl-Clone-Choose
 * [new ref]         ce3a5716b52a4108edfa6213164013c1b5101b34 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at ce3a571 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild