$ git clone -n https://src.fedoraproject.org/rpms/perl-LWP-Authen-Negotiate.git /var/lib/mock/f41-build-780096-13558/root/chroot_tmpdir/scmroot/perl-LWP-Authen-Negotiate
Cloning into '/var/lib/mock/f41-build-780096-13558/root/chroot_tmpdir/scmroot/perl-LWP-Authen-Negotiate'...
$ git fetch origin f6138fc17bc33ef36a96e5127de4bb5cd81c98f7:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/perl-LWP-Authen-Negotiate
 * [new ref]         f6138fc17bc33ef36a96e5127de4bb5cd81c98f7 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at f6138fc Eliminate use of obsolete %patchN syntax (#2283636)