$ git clone -n https://src.fedoraproject.org/rpms/perl-XML-LibXML-PrettyPrint.git /var/lib/mock/f41-build-1211707-22574/root/chroot_tmpdir/scmroot/perl-XML-LibXML-PrettyPrint
Cloning into '/var/lib/mock/f41-build-1211707-22574/root/chroot_tmpdir/scmroot/perl-XML-LibXML-PrettyPrint'...
$ git fetch origin 9cbc1f37bb7069c9a603a455c8604fd5914971d2:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/perl-XML-LibXML-PrettyPrint
 * [new ref]         9cbc1f37bb7069c9a603a455c8604fd5914971d2 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 9cbc1f3 Eliminate use of obsolete %patchN syntax (#2283636)