fix #1246 delete source when no options given #446

Job	Run time
static_flow test on ubuntu-22.04	9m 13s
static_flow test on ubuntu-24.04	40m 21s
no_mirror test on ubuntu-22.04	12m 31s
no_mirror test on ubuntu-24.04	40m 21s
flakey_broker test on ubuntu-22.04	12m 11s
flakey_broker test on ubuntu-24.04	11m 13s
dynamic_flow test on ubuntu-22.04	15m 19s
dynamic_flow test on ubuntu-24.04	40m 24s
restart_server test on ubuntu-22.04	12m 27s
restart_server test on ubuntu-24.04	9m 48s
	3h 23m 48s

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