$ git clone -n https://src.fedoraproject.org/rpms/perl-Net-FTPServer.git /var/lib/mock/f41-build-744380-13343/root/chroot_tmpdir/scmroot/perl-Net-FTPServer
Cloning into '/var/lib/mock/f41-build-744380-13343/root/chroot_tmpdir/scmroot/perl-Net-FTPServer'...
$ git fetch origin 45e0139f55bd15a022c1363e9610530df0c18e04:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/perl-Net-FTPServer
 * [new ref]         45e0139f55bd15a022c1363e9610530df0c18e04 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 45e0139 Eliminate use of obsolete %patchN syntax (#2283636)