Fix some buffer overreads that might occur in the session module when handling corrup...

FossilOrigin-Name: cda5dd9bcbef2135bb9855139a11d0e22a092f9498d82eb18e7d4401264b6eb8

diff --cc manifest
index f05e9d57c57fcd46b74e8a7eb4ff752ae5cce19f,a637c4fa71fc690b03434a9f76bd70dfedbe8029..2fd4c6d6c9ff7c0d76d39225f9b276dac2e33283
--- 1/manifest
--- 2/manifest
+++ b/manifest
@@@ -1,5 -1,5 +1,5 @@@
- C When\sgenerating\smake.sh\sfor\stestrunner,\scorrectly\squote\sthe\svalue\sof\sany\soptions\spassed\svia\senvironment\svariable\sOPTS.
- D 2026-04-09T06:38:31.158
+ C Fix\ssome\sbuffer\soverreads\sthat\smight\soccur\sin\sthe\ssession\smodule\swhen\shandling\scorrupt\schangesets.
 -D 2026-04-09T05:33:19.706
++D 2026-04-09T10:39:32.897
  F .fossil-settings/binary-glob 61195414528fb3ea9693577e1980230d78a1f8b0a54c78cf1b9b24d0a409ed6a x
  F .fossil-settings/empty-dirs dbb81e8fc0401ac46a1491ab34a7f2c7c0452f2f06b54ebb845d024ca8283ef1
  F .fossil-settings/ignore-glob 35175cdfcf539b2318cb04a9901442804be81cd677d8b889fcc9149c21f239ea
@@@ -2197,8 -2197,11 +2197,9 @@@ F tool/warnings-clang.sh bbf6a1e685e534
  F tool/warnings.sh a554d13f6e5cf3760f041b87939e3d616ec6961859c3245e8ef701d1eafc2ca2
  F tool/win/sqlite.vsix deb315d026cc8400325c5863eef847784a219a2f
  F tool/winmain.c 00c8fb88e365c9017db14c73d3c78af62194d9644feaf60e220ab0f411f3604c
--P be891a137af15897691250324e4d3d9c96f0c5fb414bca27d0c3bfdd3012a8a2
- R c24b551dbd250f5d7cc88469c80359bc
 -R 3c37bf09a4d96a6794a05c0475c7df24
 -T *branch * session-fixes
 -T *sym-session-fixes *
 -T -sym-trunk *
++P 0837933b49f5fc5590f2052808bc305aceccafbf5db65aae250c594ce48d4d32 8fcf92e15d87487703afc1129f3a89a8d4d72cb30d30a1a9151a5596473069bd
++R 78f8c181262c6bdd7ab10b5492ff03ea
++T +closed 8fcf92e15d87487703afc1129f3a89a8d4d72cb30d30a1a9151a5596473069bd
  U dan
- Z 93e98525b13ec0438aae52ba18e2c764
 -Z f9a6a87e3d60b28afdcae7eb8d4d14d0
++Z 41a68b2ae9578e53e425028b65a39dbf
  # Remove this line to create a well-formed Fossil manifest.

diff --cc manifest.uuid
index 6aa6b18db92c5a3c13a41c2af51edc71d937b994,ec8a5418066825a8d3ea2f6196783b855fa07941..2a0969cac510ff147fd83610a23f3f12a0d9d6b4
--- 1/manifest.uuid
--- 2/manifest.uuid
+++ b/manifest.uuid
@@@ -1,1 -1,1 +1,1 @@@
- 0837933b49f5fc5590f2052808bc305aceccafbf5db65aae250c594ce48d4d32
 -8fcf92e15d87487703afc1129f3a89a8d4d72cb30d30a1a9151a5596473069bd
++cda5dd9bcbef2135bb9855139a11d0e22a092f9498d82eb18e7d4401264b6eb8