[Issue 14290] is-expression accepts instantiation of already instantiated template

[via Digitalmars-d-bugs]

https://issues.dlang.org/show_bug.cgi?id=14290

--- Comment #2 from github-bugzilla at puremagic.com ---
Commits pushed to master at https://github.com/D-Programming-Language/phobos

https://github.com/D-Programming-Language/phobos/commit/af1db6dba1c8dfe5044f0364c8d4c51aaa7ba1be
Supplemental fix for issue 14290

https://github.com/D-Programming-Language/phobos/commit/31f4928ad691397155ff1d4019de7a28fb8bb5a9
Merge pull request #3057 from 9rnsr/fix14290

Supplemental fix for issue 14290

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