$ git clone -n https://src.fedoraproject.org/rpms/perl-Data-Pageset.git /var/lib/mock/f45-build-22888-594/root/chroot_tmpdir/scmroot/perl-Data-Pageset
Cloning into '/var/lib/mock/f45-build-22888-594/root/chroot_tmpdir/scmroot/perl-Data-Pageset'...
$ git fetch origin e386ae91688005883cf627d2e380ef52ee52acd3:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/perl-Data-Pageset
 * [new ref]         e386ae91688005883cf627d2e380ef52ee52acd3 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at e386ae9 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild