Improvements to the min/max optimization. Fix for a performance

regression introduced at [b8ba2f17f938c035] reported by
[forum:/forumpost/4050026ab8|forum post 4050026ab8]

FossilOrigin-Name: 249a71cc6822d6bdd5bb9e727aac81c6549693b418e9c0987b96850ee332c940

diff --cc manifest
index b050b37ce04969b52d04d5a07151c8938937a7aa,a0e67a5b4648ce6c6f3e690c29b5580b095ea89e..c00d0af4e9b610658dd0ee2f9a00a120fca8c900
--- 1/manifest
--- 2/manifest
+++ b/manifest
@@@ -1,5 -1,5 +1,5 @@@
- C cli:\sOmit\ssurplus\swhitespace\sat\sthe\send\sof\slines\sin\s.explain\soutput.
- D 2021-01-13T12:59:20.834
 -C The\searly-out\sof\sthe\sinner\sloop\son\sthe\smin/max\soptimization\swas\soverly\naggressive\sfor\sthe\scases\swhere\sthere\sis\sa\sjoin\sand\souter\sloops\scontain\nIN\soperators.\s\sFix\sthis.\s\sTest\scase\sin\sTH3.
 -D 2021-01-14T00:53:14.879
++C Improvements\sto\sthe\smin/max\soptimization.\s\sFix\sfor\sa\sperformance\nregression\sintroduced\sat\s[b8ba2f17f938c035]\sreported\sby\n[forum:/forumpost/4050026ab8|forum\spost\s4050026ab8]
++D 2021-01-14T20:57:47.228
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  F LICENSE.md df5091916dbb40e6e9686186587125e1b2ff51f022cc334e886c19a0e9982724
@@@ -1895,7 -1895,7 +1895,8 @@@ F vsixtest/vsixtest.tcl 6a9a6ab600c25a9
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diff --cc manifest.uuid
index ccaf3daab692b1ff120689de863986c12d776afc,7f27c3343a2d5fea471f5214f6bec2c4b1eb1286..6ee0559a9e5e2629618f6140c0e4b02d99e138dd
--- 1/manifest.uuid
--- 2/manifest.uuid
+++ b/manifest.uuid
@@@ -1,1 -1,1 +1,1 @@@
- 11e4eb095746602961a178044809a68a77ba7b367596997bef726e54062423d9
 -ccd3bae14b6b47bb0f9622700c04db989f76ce65e10e0709964cfd0675eca762
++249a71cc6822d6bdd5bb9e727aac81c6549693b418e9c0987b96850ee332c940