fix: cache original_nodes with nodes #1587

Job	Run time
run ci on redhat ubi (lua-resty-worker-events, t/plugin/[a-k]*)	14m 25s
run ci on redhat ubi (lua-resty-worker-events, t/plugin/[a-k]*)	31m 21s
run ci on redhat ubi (lua-resty-worker-events, t/plugin/[l-z]*)	14m 27s
run ci on redhat ubi (lua-resty-worker-events, t/plugin/[l-z]*)	32m 42s
run ci on redhat ubi (lua-resty-worker-events, t/admin t/cli t/config-center-yaml t/control t/cor...	14m 28s
run ci on redhat ubi (lua-resty-worker-events, t/admin t/cli t/config-center-yaml t/control t/cor...	10m 0s
run ci on redhat ubi (lua-resty-worker-events, t/node t/pubsub t/router t/script t/secret t/strea...	14m 28s
run ci on redhat ubi (lua-resty-worker-events, t/node t/pubsub t/router t/script t/secret t/strea...	24m 5s
run ci on redhat ubi (lua-resty-events, t/plugin/[a-k]*)	7m 17s
run ci on redhat ubi (lua-resty-events, t/plugin/[a-k]*)	32m 0s
run ci on redhat ubi (lua-resty-events, t/plugin/[l-z]*)	14m 28s
run ci on redhat ubi (lua-resty-events, t/plugin/[l-z]*)	8m 45s
run ci on redhat ubi (lua-resty-events, t/admin t/cli t/config-center-yaml t/control t/core t/deb...	14m 28s
run ci on redhat ubi (lua-resty-events, t/admin t/cli t/config-center-yaml t/control t/core t/deb...	25m 54s
run ci on redhat ubi (lua-resty-events, t/node t/pubsub t/router t/script t/secret t/stream-node ...	14m 27s
run ci on redhat ubi (lua-resty-events, t/node t/pubsub t/router t/script t/secret t/stream-node ...	23m 38s
	4h 56m 53s

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