Downloading results from node/x/webform-results/download throws the above E_NOTICE if there are no submissions for the webform.
Patch attached, however I'm not sure if it makes more sense to define $sid before we iterate through $submissions at line 754.
Thanks, nice find. I've committed this patch to all branches which just defined $sid with a value of 0.
Automatically closed -- issue fixed for 2 weeks with no activity.
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