$ git clone -n https://src.fedoraproject.org/rpms/perl-Kwiki-Search.git /var/lib/mock/f41-build-1053420-19286/root/chroot_tmpdir/scmroot/perl-Kwiki-Search
Cloning into '/var/lib/mock/f41-build-1053420-19286/root/chroot_tmpdir/scmroot/perl-Kwiki-Search'...
$ git fetch origin a96f700c8ff7bb5682d33c8d611d3f929afc4774:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/perl-Kwiki-Search
 * [new ref]         a96f700c8ff7bb5682d33c8d611d3f929afc4774 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at a96f700 Eliminate use of obsolete %patchN syntax (#2283636)