$ git clone -n https://src.fedoraproject.org/rpms/perl-Kwiki-NewPage.git /var/lib/mock/f41-build-1053425-19286/root/chroot_tmpdir/scmroot/perl-Kwiki-NewPage
Cloning into '/var/lib/mock/f41-build-1053425-19286/root/chroot_tmpdir/scmroot/perl-Kwiki-NewPage'...
$ git fetch origin 93fda95a34f0e566f4130fabe21cdab34f11b00c:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/perl-Kwiki-NewPage
 * [new ref]         93fda95a34f0e566f4130fabe21cdab34f11b00c -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 93fda95 Eliminate use of obsolete %patchN syntax (#2283636)