$ git clone -n https://src.fedoraproject.org/rpms/perl-OpenFrame.git /var/lib/mock/f41-build-744417-13343/root/chroot_tmpdir/scmroot/perl-OpenFrame
Cloning into '/var/lib/mock/f41-build-744417-13343/root/chroot_tmpdir/scmroot/perl-OpenFrame'...
$ git fetch origin 39c0776988de9a93224f1c00850a9d57d80c7690:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/perl-OpenFrame
 * [new ref]         39c0776988de9a93224f1c00850a9d57d80c7690 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 39c0776 Eliminate use of obsolete %patchN syntax (#2283636)