[Issue 20314] passing const variables to `only` forces const range element type

[d-bugmail at puremagic.com]

https://issues.dlang.org/show_bug.cgi?id=20314

Dlang Bot <dlang-bot at dlang.rocks> changed:

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--- Comment #1 from Dlang Bot <dlang-bot at dlang.rocks> ---
@FeepingCreature created dlang/phobos pull request #7253 "Fix issue 20314: pass
`only` parameters by value" fixing this issue:

- Fix issue 20314: pass `only` parameters by value

https://github.com/dlang/phobos/pull/7253

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