$ git clone -n https://src.fedoraproject.org/rpms/R-websocket.git /var/lib/mock/f41-build-740675-13309/root/chroot_tmpdir/scmroot/R-websocket
Cloning into '/var/lib/mock/f41-build-740675-13309/root/chroot_tmpdir/scmroot/R-websocket'...
$ git fetch origin 267211a8ca69a562e958e2e03e3a3c8d94532028:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/R-websocket
 * [new ref]         267211a8ca69a562e958e2e03e3a3c8d94532028 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 267211a Eliminate use of obsolete %patchN syntax (#2283636)