Add the sqlite3changegroup_schema() API. To allow changegroup objects to upgrade...

FossilOrigin-Name: 03f9e50b15c9c2fb4636dee24c1491c45322578b9fed08c6f4360be07c5c3830

diff --cc manifest
index ff15ff5062cfa32db56168859d5fe29358cd9abe,17d2603f3a40a4ea095dd305239550095dd00617..11bf73e11c5ad7183734e4d63e21b889b0184a5e
--- 1/manifest
--- 2/manifest
+++ b/manifest
@@@ -1,5 -1,5 +1,5 @@@
- C Add\sa\stest\scase\sto\sprevent\sa\sregression\sof\sthe\sleak\sfixed\sin\sthe\sprevious\ntrunk\scheck-in.
- D 2023-10-07T08:15:47.314
 -C Fix\sa\sproblem\swith\sthe\schanges\son\sthis\sbranch\sand\stables\sthat\suse\san\simplicit\sprimary\skey.
 -D 2023-10-07T16:07:02.856
++C Add\sthe\ssqlite3changegroup_schema()\sAPI.\sTo\sallow\schangegroup\sobjects\sto\supgrade\sthe\sschema\sof\sa\schangeset/patchset\sunder\ssome\scircumstances.
++D 2023-10-07T16:32:02.752
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  F LICENSE.md df5091916dbb40e6e9686186587125e1b2ff51f022cc334e886c19a0e9982724
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  # Remove this line to create a well-formed Fossil manifest.

diff --cc manifest.uuid
index 46a0d004acac153b28c4ebef5056d39062d17e3e,3f5907db200736a09eca19f1bb473e7c581cd16d..29ee22a2d29e76db3477a32b7c3aa49629862d18
--- 1/manifest.uuid
--- 2/manifest.uuid
+++ b/manifest.uuid
@@@ -1,1 -1,1 +1,1 @@@
- f99ff655d09763c4a22d065041644ece793d84c82c644931e89ccf50c4f4564a
 -1f9d10235ff32e72074be695049567135b02e681068ce117b66adc14a6214449
++03f9e50b15c9c2fb4636dee24c1491c45322578b9fed08c6f4360be07c5c3830