$ git clone -n https://src.fedoraproject.org/rpms/perl-XML-LibXML-PrettyPrint.git /var/lib/mock/f45-build-27490-624/root/chroot_tmpdir/scmroot/perl-XML-LibXML-PrettyPrint
Cloning into '/var/lib/mock/f45-build-27490-624/root/chroot_tmpdir/scmroot/perl-XML-LibXML-PrettyPrint'...
$ git fetch origin 3147b35c8033f57b3c9f0a373297185a66d19004:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/perl-XML-LibXML-PrettyPrint
 * [new ref]         3147b35c8033f57b3c9f0a373297185a66d19004 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 3147b35 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild