Merge of notify.c changes from experimental.

Reset stored blocking connection when registered unlock_notify callback is cleared.

FossilOrigin-Name: e79dac3c2f723ed7cc62fcef468f53952711f242

diff --cc manifest
index 9fe9013723b671cea41dd1888c7697b66d08b7f6,b16c49d18258c6e854241670aaa6ac847be3d309..b2b561671023ceb04b37bf3576d8135c4ad31460
--- 1/manifest
--- 2/manifest
+++ b/manifest
@@@ -1,8 -1,8 +1,5 @@@
-------BEGIN PGP SIGNED MESSAGE-----
--Hash: SHA1
--
- C Change\ssqlite3_step()\sso\sthat\sit\sautomatically\scalls\ssqlite3_reset()\sinstead\nof\sreturning\sSQLITE_MISUSE\swhen\sinvoked\son\sa\sprepared\sstatement\sthat\npreviously\sreturned\sany\svalue\sother\sthan\sSQLITE_ROW.
- D 2010-04-17T12:53:20
 -C It\sis\spossible\sfor\ssqlite3.pUnlockConnection\sto\sbe\snon-NULL\swhen\nsqlite3.pBlockingConnection\sis\sNULL,\sas\sthe\snotify1.test\sscript\ndemonstrates.
 -D 2010-04-17T16:10:19
++C Merge\sof\snotify.c\schanges\sfrom\sexperimental.\s\s\nReset\sstored\sblocking\sconnection\swhen\sregistered\sunlock_notify\scallback\sis\scleared.
++D 2010-04-23T14:29:04
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  F Makefile.linux-gcc d53183f4aa6a9192d249731c90dbdffbd2c68654
@@@ -801,14 -801,14 +798,7 @@@ F tool/speedtest2.tcl ee2149167303ba8e9
  F tool/speedtest8.c 2902c46588c40b55661e471d7a86e4dd71a18224
  F tool/speedtest8inst1.c 293327bc76823f473684d589a8160bde1f52c14e
  F tool/vdbe-compress.tcl d70ea6d8a19e3571d7ab8c9b75cba86d1173ff0f
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diff --cc manifest.uuid
index 9d8bb1e648c658c7c93040aae2a8b18cc015380d,542f64d6b29b40b885aebc9d430e3eb4055d9122..80f48ee22218b85ff515a146da4b782c15ca0c57
--- 1/manifest.uuid
--- 2/manifest.uuid
+++ b/manifest.uuid
@@@ -1,1 -1,1 +1,1 @@@
- 3e646e3f4cd0ca288e444561e951cecfdaee2ab5
 -95ff76ef67d6189f54375973fa485d6eb464b029
++e79dac3c2f723ed7cc62fcef468f53952711f242