When an Expr object is changed and that Expr is referenced by an AggInfo, then

also update the AggInfo.  Also, persist all AggInfo objects until the Parse
object is destroyed.  This is a new fix for ticket [c8d3b9f0a750a529] that
avoids the follow-on problems identified by tickets
[0899cf62f597d7e7], [1f6f353b684fc708], [e5504e987e419fb0], and
[f7d890858f361402].

FossilOrigin-Name: 6e6b3729e0549de028f6c5bf494b2d69d621c81b61a1dc0a329d3950039342fb

diff --cc manifest
index ca4608031d36bf912cac0875ea4e3d3ce52e1959,5adab9d6c4c9c221c82bfc2127a493c97ed17fce..ae3141103aca8d5a1d06e785b9235ddcae1d7e3a
--- 1/manifest
--- 2/manifest
+++ b/manifest
@@@ -1,5 -1,5 +1,5 @@@
- C In\sthe\sdebugging\streeview\soutput,\schange\sthe\sname\sof\s"SELECT-expr"\sexpression\nnodes\sto\sbe\s"subquery-expr",\sso\sas\sto\snot\sconfuse\sthem\swith\sactual\sSELECT\nnodes.
- D 2020-06-05T04:01:50.831
 -C Fix\sminor\sOOM\sproblems.
 -D 2020-06-07T22:44:23.371
++C When\san\sExpr\sobject\sis\schanged\sand\sthat\sExpr\sis\sreferenced\sby\san\sAggInfo,\sthen\nalso\supdate\sthe\sAggInfo.\s\sAlso,\spersist\sall\sAggInfo\sobjects\suntil\sthe\sParse\nobject\sis\sdestroyed.\s\sThis\sis\sa\snew\sfix\sfor\sticket\s[c8d3b9f0a750a529]\sthat\navoids\sthe\sfollow-on\sproblems\sidentified\sby\stickets\n[0899cf62f597d7e7],\s[1f6f353b684fc708],\s[e5504e987e419fb0],\sand\n[f7d890858f361402].
++D 2020-06-08T11:34:40.204
  F .fossil-settings/empty-dirs dbb81e8fc0401ac46a1491ab34a7f2c7c0452f2f06b54ebb845d024ca8283ef1
  F .fossil-settings/ignore-glob 35175cdfcf539b2318cb04a9901442804be81cd677d8b889fcc9149c21f239ea
  F LICENSE.md df5091916dbb40e6e9686186587125e1b2ff51f022cc334e886c19a0e9982724
@@@ -1866,7 -1866,7 +1866,8 @@@ F vsixtest/vsixtest.tcl 6a9a6ab600c25a9
  F vsixtest/vsixtest.vcxproj.data 2ed517e100c66dc455b492e1a33350c1b20fbcdc
  F vsixtest/vsixtest.vcxproj.filters 37e51ffedcdb064aad6ff33b6148725226cd608e
  F vsixtest/vsixtest_TemporaryKey.pfx e5b1b036facdb453873e7084e1cae9102ccc67a0
- P 2827c0a186596299e43eb3e7378eea462d2b060b2c3388ce5cb2bc8e0b43999e
- R ee30fc3f51275fe44c86656d5c06c7d7
 -P 3c840b4df306e2db1da08673e9ede973b4cb6d2b3f9eeeab5835e39452ee3056
++P c1c8937a30feff6aa4385b0c264fd8e70d54422a0629c2ce38082d85d3334a57 8b23d80271aab38abe42ee8b3ca4b746572ecef26c2a37b094b01560e6be9d45
+ R 5a67d9ba1d91119ad620e46132adbad1
++T +closed 8b23d80271aab38abe42ee8b3ca4b746572ecef26c2a37b094b01560e6be9d45
  U drh
- Z bb7b42e3c07b2ab8975730fed03b093c
 -Z 23a540eb57cb09221e33c4eabdced32a
++Z 6f53567ca5c0a8bbc47fb39a7dc9415b

diff --cc manifest.uuid
index 5c9bd2c32c453116d5495077251c9e956074d3c8,5b9f0ff1f4673c490b23353210874bfe3dd88002..af887204a7d93afff160b1799122c9278129d94a
--- 1/manifest.uuid
--- 2/manifest.uuid
+++ b/manifest.uuid
@@@ -1,1 -1,1 +1,1 @@@
- c1c8937a30feff6aa4385b0c264fd8e70d54422a0629c2ce38082d85d3334a57
 -8b23d80271aab38abe42ee8b3ca4b746572ecef26c2a37b094b01560e6be9d45
++6e6b3729e0549de028f6c5bf494b2d69d621c81b61a1dc0a329d3950039342fb