diff --git a/manifest b/manifest
index 64318a4..0a9d891 100644
--- a/manifest
+++ b/manifest
@@ -1,5 +1,5 @@
-C Improved\sdetection\sof\scells\sthat\sextend\sinto\sthe\sreserved\sspace\sat\sthe\send\nof\sthe\spage\swhile\sadjusting\soverflow\spage\spointers\sduring\sautovacuum.
-D 2017-01-12T15:11:03.724
+C Test\scase\smacros\sto\sshow\sthat\sthe\sprevious\scheck-in\sis\swell\stested.
+D 2017-01-12T15:19:53.393
 F Makefile.in 41bd4cad981487345c4a84081074bcdb876e4b2e
 F Makefile.linux-gcc 7bc79876b875010e8c8f9502eb935ca92aa3c434
 F Makefile.msc b8ca53350ae545e3562403d5da2a69cec79308da
@@ -331,7 +331,7 @@
 F src/backup.c faf17e60b43233c214aae6a8179d24503a61e83b
 F src/bitvec.c 17ea48eff8ba979f1f5b04cc484c7bb2be632f33
 F src/btmutex.c 0e9ce2d56159b89b9bc8e197e023ee11e39ff8ca
-F src/btree.c 90f8b15ec9baf65d5bfff65bdaee773b928836c1
+F src/btree.c e40ad22492e1c9c2e0047d05bc872616a82bdb3d
 F src/btree.h e6d352808956ec163a17f832193a3e198b3fb0ac
 F src/btreeInt.h 10c4b77c2fb399580babbcc7cf652ac10dba796e
 F src/build.c 9e799f1edd910dfa8a0bc29bd390d35d310596af
@@ -1544,7 +1544,10 @@
 F vsixtest/vsixtest.vcxproj.data 2ed517e100c66dc455b492e1a33350c1b20fbcdc
 F vsixtest/vsixtest.vcxproj.filters 37e51ffedcdb064aad6ff33b6148725226cd608e
 F vsixtest/vsixtest_TemporaryKey.pfx e5b1b036facdb453873e7084e1cae9102ccc67a0
-P 163cc1b2f7100827d5803b81dcd97a1417744f66
-R d095162836679cc779e9b3972f22e3ea
+P 8097712c9c1f4ea16bc5dd462da248ef98896061
+R fcc6877a155bda5c13b90960a2e1f722
+T *branch * extra-testcase-macros
+T *sym-extra-testcase-macros *
+T -sym-trunk *
 U drh
-Z e05f25d6fff0c473a188620363f2fa54
+Z be698d0efc557d12d52d8303910ba93b
diff --git a/manifest.uuid b/manifest.uuid
index ae5d120..91ad455 100644
--- a/manifest.uuid
+++ b/manifest.uuid
@@ -1 +1 @@
-8097712c9c1f4ea16bc5dd462da248ef98896061
\ No newline at end of file
+bd8b977abbc3eacdf0dd5c360e85e14db9456b2a
\ No newline at end of file
diff --git a/src/btree.c b/src/btree.c
index 99e9741..2245f1a 100644
--- a/src/btree.c
+++ b/src/btree.c
@@ -3357,6 +3357,8 @@
         CellInfo info;
         pPage->xParseCell(pPage, pCell, &info);
         if( info.nLocal<info.nPayload ){
+          testcase( pCell+info.nSize == pPage->aData+pPage->pBt->usableSize );
+          testcase( pCell+info.nSize == pPage->aData+pPage->pBt->usableSize+1 );
           if( pCell+info.nSize > pPage->aData+pPage->pBt->usableSize ){
             return SQLITE_CORRUPT_BKPT;
           }