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Concurrent invocations of
touch()
orset()
for the same sessionid
can result in problems. (See isssue 88).Practically, this may happen when a browser concurrently loads multiple resources for the same site/page.
The problem may be limited to projects backed by an SQLite db, but this has not yet been carefully tested;
prisma
orexpress-session
may alternately / additionally be implicated.As a work-around for now, this PR dis-allows concurrent calls to
touch()
orset()
for the same sessionid
by default - but provides options to over-ride this new behavior, in case there happen to be scenarios for which the "fix" proves more problematic than helpful.