If there is a WHERE clause constraint of the form "a=$var", then

automatically reprepare the query if the binding of $var changes, as
that could affect the query plan.

FossilOrigin-Name: 1249eeb1b9759038b6d10dcd8d65f64f81e8529b28e5e24f9fc5759e9a1c88a5

diff --cc manifest
index 93bbf51abba8323ab743df1a9ace821b0dbf5f09,adb26a09dc7cee5f2d2a5c8b74fc19ea467142be..8706de419f549e62d4d117f0d9b1e21e3af8eb03
--- 1/manifest
--- 2/manifest
+++ b/manifest
@@@ -1,5 -1,5 +1,5 @@@
- C Harden\sthe\sQRF\sextension\sagainst\sinteger\soverflow\sproblems.
- D 2026-05-14T13:29:59.720
 -C Handle\sconstraints\slike\s"a=$var"\swhere\sthe\svalue\sbound\sto\s$var\sis\s-1,\s0\sor\s1\sin\sthe\ssame\sway\sas\sa\sliteral\s-1,\s0,\s1.\sThis\smight\scause\sexcessive\sreprepares.
 -D 2026-05-14T17:54:23.788
++C If\sthere\sis\sa\sWHERE\sclause\sconstraint\sof\sthe\sform\s"a=$var",\sthen\nautomatically\sreprepare\sthe\squery\sif\sthe\sbinding\sof\s$var\schanges,\sas\nthat\scould\saffect\sthe\squery\splan.
++D 2026-05-14T22:39:41.142
  F .fossil-settings/binary-glob 61195414528fb3ea9693577e1980230d78a1f8b0a54c78cf1b9b24d0a409ed6a x
  F .fossil-settings/empty-dirs dbb81e8fc0401ac46a1491ab34a7f2c7c0452f2f06b54ebb845d024ca8283ef1
  F .fossil-settings/ignore-glob 35175cdfcf539b2318cb04a9901442804be81cd677d8b889fcc9149c21f239ea
@@@ -2205,8 -2205,11 +2205,8 @@@ F tool/warnings-clang.sh bbf6a1e685e534
  F tool/warnings.sh a554d13f6e5cf3760f041b87939e3d616ec6961859c3245e8ef701d1eafc2ca2
  F tool/win/sqlite.vsix deb315d026cc8400325c5863eef847784a219a2f
  F tool/winmain.c 00c8fb88e365c9017db14c73d3c78af62194d9644feaf60e220ab0f411f3604c
- P 91439d95dc81adebf8226f2b7c33ca62a4b7163cfc14e03993524aa17b5767f3
- R dcedd1032c06cce77f779cd3127058c3
 -P f81d6d7bc8943729f678a3b62921a96764b15b9cc11d8a5753e48210a1b59617
 -R 8f8318379b196cd0991d680e07b8a844
 -T *branch * reprepare-a=var
 -T *sym-reprepare-a=var *
 -T -sym-trunk *
 -U dan
 -Z 7fbfe875c8d4b7c99a11f0177adeb2df
++P 83d3a0d39b0b36a47003206d390935d4c94f7a906ada02f69e0ad1eef2f22d59 224e827e87ac8aa4b18ff9b2193decbdcd832579bf6b6e0883c03db90ebd5319
++R 7e1037d3313bf3f6b8b44b87c5454258
 +U drh
- Z b4410a4f1ed1fa549c084c2e69dfa599
++Z 047b8dbfe663ad9d31f3cd83ad393dda
  # Remove this line to create a well-formed Fossil manifest.

diff --cc manifest.uuid
index 4e4723a42f81e4e2051f7b642fac0776bd23e7e0,b47946bfa02b9e918e210b0ed9b9472b33be5c82..61310f28228bbe570871073cf1f03475e2b1c3fb
--- 1/manifest.uuid
--- 2/manifest.uuid
+++ b/manifest.uuid
@@@ -1,1 -1,1 +1,1 @@@
- 83d3a0d39b0b36a47003206d390935d4c94f7a906ada02f69e0ad1eef2f22d59
 -224e827e87ac8aa4b18ff9b2193decbdcd832579bf6b6e0883c03db90ebd5319
++1249eeb1b9759038b6d10dcd8d65f64f81e8529b28e5e24f9fc5759e9a1c88a5