$ git clone -n https://src.fedoraproject.org/rpms/perl-XML-LibXML.git /var/lib/mock/f45-build-27495-624/root/chroot_tmpdir/scmroot/perl-XML-LibXML
Cloning into '/var/lib/mock/f45-build-27495-624/root/chroot_tmpdir/scmroot/perl-XML-LibXML'...
$ git fetch origin 1b8cb5724b75dd662a8ee6d9734a629124c33fdf:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/perl-XML-LibXML
 * [new ref]         1b8cb5724b75dd662a8ee6d9734a629124c33fdf -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 1b8cb57 Perl 5.44 rebuild