$ git clone -n https://src.fedoraproject.org/rpms/perl-perlindex.git /var/lib/mock/f41-build-759431-13440/root/chroot_tmpdir/scmroot/perl-perlindex
Cloning into '/var/lib/mock/f41-build-759431-13440/root/chroot_tmpdir/scmroot/perl-perlindex'...
$ git fetch origin 1050640be81977ab094edb6e4e3eee03e666083d:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/perl-perlindex
 * [new ref]         1050640be81977ab094edb6e4e3eee03e666083d -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 1050640 Eliminate use of obsolete %patchN syntax (#2283636)