More restrictions on changes to shadow tables when in defensive mode.

FossilOrigin-Name: bae76a5c40703871e5ce4cd23d6fae5a3836606f524a63b01ac828c7a602c5e9

diff --cc manifest
index cc225c4e7ca331854f200e8fd2ede4e182b0641e,dc7ae2077e7352454df65b135ec5532882b21d9e..3ac82a7101bcb51496bebb865573cce902d84f8e
--- 1/manifest
--- 2/manifest
+++ b/manifest
@@@ -1,5 -1,5 +1,5 @@@
- C Do\snot\sallow\sshadow\stables\sto\sbe\sdropped\sin\sdefensive\smode.
- D 2019-11-16T12:04:38.775
 -C Do\snot\sallow\sCREATE\sTABLE\sor\sCREATE\sVIEW\sof\san\sobject\swith\sa\sname\sthat\slooks\nlike\sa\sshadow\stable\sname.
 -D 2019-11-16T14:15:19.202
++C More\srestrictions\son\schanges\sto\sshadow\stables\swhen\sin\sdefensive\smode.
++D 2019-11-16T16:54:53.217
  F .fossil-settings/empty-dirs dbb81e8fc0401ac46a1491ab34a7f2c7c0452f2f06b54ebb845d024ca8283ef1
  F .fossil-settings/ignore-glob 35175cdfcf539b2318cb04a9901442804be81cd677d8b889fcc9149c21f239ea
  F LICENSE.md df5091916dbb40e6e9686186587125e1b2ff51f022cc334e886c19a0e9982724
@@@ -1849,7 -1849,7 +1849,8 @@@ F vsixtest/vsixtest.tcl 6a9a6ab600c25a9
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diff --cc manifest.uuid
index 2851b6bec31dd048fdd77915f9b51f2f5ae03c17,476f2b2fe23fa9e2d216db5839d1a4719f4538bd..ccd42392f28bee63dd2c9f666846219c7806d991
--- 1/manifest.uuid
--- 2/manifest.uuid
+++ b/manifest.uuid
@@@ -1,1 -1,1 +1,1 @@@
- 70390bbca49e706649ca5b7c031f0baf416fc38798c17e5f3b73746b3e66e3b5
 -6aef58b629d89955f85f65191ba2be67b2adfac4f0327fe9a7141cb2705dbc00
++bae76a5c40703871e5ce4cd23d6fae5a3836606f524a63b01ac828c7a602c5e9