dealing with some edge cases and documenting the new WATCH functionality #34
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This patch deals with the following scenarios, which would ended up
cleaning the inTransaction prematurely:
UNWATCH after MULTI
t = multi
t.unwatch
WATCH, MULTI (with keys)
t = watch
t.multi("foobar")
t.unwatch
3 . MULTI + WATCH
t = multi
t.watch # this is invalid, but
will change the _unwatch_cc
to a function that would clear
the inTransaction state
I've also dropped a couple more tests, notably testing WATCH with ConnectionPool.