Fix a bug in fuzzcheck that cause it to overlook a pointer-map bug that was

trigger by the fuzzcheck test data, and also fix the pointer-map bug.

FossilOrigin-Name: cc42dd15100db28a9796254f69a4e367ea5eae29f546be055017cf3e12aa66ba

diff --cc manifest
index 1e79d7e3d372e7cb7f3a2bd0875a64e5f19ec13f,197727a8981467af48f264082249c964de1c174f..ccc99ce8fcf6a7decbd06e773e242ec1e1f0d018
--- 1/manifest
--- 2/manifest
+++ b/manifest
@@@ -1,5 -1,5 +1,5 @@@
- C Fix\sthe\sdbtotxt\sdecoder\sin\sthe\sCLI\sso\sthat\sit\signores\sexcess\sbytes.
- D 2018-12-13T22:58:52.532
 -C Detect\swhen\san\sattempt\sis\smade\sto\swrite\sto\sa\spointer\smap\spage\sthat\sis\salso\nbeing\sused\sas\sa\sbtree\spage\sand\sreport\scorruption.
 -D 2018-12-14T03:14:18.024
++C Fix\sa\sbug\sin\sfuzzcheck\sthat\scause\sit\sto\soverlook\sa\spointer-map\sbug\sthat\swas\ntrigger\sby\sthe\sfuzzcheck\stest\sdata,\sand\salso\sfix\sthe\spointer-map\sbug.
++D 2018-12-14T03:16:17.943
  F .fossil-settings/empty-dirs dbb81e8fc0401ac46a1491ab34a7f2c7c0452f2f06b54ebb845d024ca8283ef1
  F .fossil-settings/ignore-glob 35175cdfcf539b2318cb04a9901442804be81cd677d8b889fcc9149c21f239ea
  F Makefile.in d8b254f8bb81bab43c340d70d17dc3babab40fcc8a348c8255881f780a45fee6
@@@ -1787,7 -1787,7 +1787,8 @@@ F vsixtest/vsixtest.tcl 6a9a6ab600c25a9
  F vsixtest/vsixtest.vcxproj.data 2ed517e100c66dc455b492e1a33350c1b20fbcdc
  F vsixtest/vsixtest.vcxproj.filters 37e51ffedcdb064aad6ff33b6148725226cd608e
  F vsixtest/vsixtest_TemporaryKey.pfx e5b1b036facdb453873e7084e1cae9102ccc67a0
- P 1201615cbbd3070158ea5fab3d2c8c95f41b25d6da096a44cb9257a7b7405efc
- R d3f6d72bb77728c78f155f9adb19ef12
 -P e0994e99955cf11f23dba029b5ed7f150f467887558848d5f03510e2fb5855f9
++P 18740bd448887d618fafee0b5a7c004aa2f2632244f7d29e2428772baa36b828 3036fd71ac7063359b04a0ed54a6c63a380eb7ff75cd29ed27486d4259066aee
+ R 7367b1481f35f13ad669721d0de5a468
++T +closed 3036fd71ac7063359b04a0ed54a6c63a380eb7ff75cd29ed27486d4259066aee
  U drh
- Z 66d296af7cf5703e86d937cc4fe79584
 -Z 152c6d103923350304ee36a88dc9ee39
++Z 3dec21dea4844642e6338ca29ec5fe6a

diff --cc manifest.uuid
index cd91c126d42da6979c0740724422096b8750c8c8,a1898b4d0ebe70af47aec0fc7b96e46299daf200..60b5dc7f91e9e144531429740e112e39ff4f9cb5
--- 1/manifest.uuid
--- 2/manifest.uuid
+++ b/manifest.uuid
@@@ -1,1 -1,1 +1,1 @@@
- 18740bd448887d618fafee0b5a7c004aa2f2632244f7d29e2428772baa36b828
 -3036fd71ac7063359b04a0ed54a6c63a380eb7ff75cd29ed27486d4259066aee
++cc42dd15100db28a9796254f69a4e367ea5eae29f546be055017cf3e12aa66ba