$ git clone -n https://src.fedoraproject.org/rpms/netgen.git /var/lib/mock/f41-build-772676-13507/root/chroot_tmpdir/scmroot/netgen
Cloning into '/var/lib/mock/f41-build-772676-13507/root/chroot_tmpdir/scmroot/netgen'...
$ git fetch origin 11f872cf417462b06bd679f29fd47f3b3e06fe3f:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/netgen
 * [new ref]         11f872cf417462b06bd679f29fd47f3b3e06fe3f -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 11f872c Eliminate use of obsolete %patchN syntax (#2283636)