$ git clone -n https://src.fedoraproject.org/rpms/ghc-wai-websockets.git /var/lib/mock/f39-build-1714618-41228/root/chroot_tmpdir/scmroot/ghc-wai-websockets
Cloning into '/var/lib/mock/f39-build-1714618-41228/root/chroot_tmpdir/scmroot/ghc-wai-websockets'...
$ git fetch origin 35768d6b67595a686246ed754fd29083e827c192:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/ghc-wai-websockets
 * [new ref]         35768d6b67595a686246ed754fd29083e827c192 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 35768d6 bump release