$ git clone -n https://src.fedoraproject.org/rpms/perl-Kwiki-UserPreferences.git /var/lib/mock/f45-build-24346-603/root/chroot_tmpdir/scmroot/perl-Kwiki-UserPreferences
Cloning into '/var/lib/mock/f45-build-24346-603/root/chroot_tmpdir/scmroot/perl-Kwiki-UserPreferences'...
$ git fetch origin d51c62d3fd681492cb6d1f68f0fbbae53c658392:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/perl-Kwiki-UserPreferences
 * [new ref]         d51c62d3fd681492cb6d1f68f0fbbae53c658392 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at d51c62d Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild