$ git clone -n https://src.fedoraproject.org/rpms/perl-DateTime-Format-Flexible.git /var/lib/mock/f45-build-23003-595/root/chroot_tmpdir/scmroot/perl-DateTime-Format-Flexible
Cloning into '/var/lib/mock/f45-build-23003-595/root/chroot_tmpdir/scmroot/perl-DateTime-Format-Flexible'...
$ git fetch origin fe5476af082f7850b102f0806507970d3a49310e:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/perl-DateTime-Format-Flexible
 * [new ref]         fe5476af082f7850b102f0806507970d3a49310e -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at fe5476a Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild