The request can be retried immediately after the first
new identity, but if we do more new identities, we have to wait
for at least 6 seconds before doing the request, otherwise
it won't be done on a new ip based on my experiments.
Potential issue: If after getting third new identity, request
takes > 12 seconds (since timeout is 15) and returns 429, then the
Tor Manager will let it do a 4th try instead of giving up (meaning
request is taking forever from user's perspective).
Should be a very rare occurence however.
Signed-off-by: Jesús <heckyel@hyperbola.info>
b567a34ecd