Simplify caching infra with easier GC
simplify assertion generator
Simplify multiline tests
improve log output
Complain about bad hashtag defaults
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v0.003004

 [Checks]
 - Warn about bad hashtags.

 [Dependencies::Stats]
 - Dependencies changed since 0.003003, see misc/*.deps* for details
 - runtime: +1

 [Internals]
 - Better caching
 - better assertion generator test
 - simplified multi-line test
post-release cleanup