Fix Issue 20323 - checkaction=context fails for non-copyable arguments

[MoonlightSentinel]

No description provided.

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Bugzilla references

Auto-close	Bugzilla	Severity	Description
✓	20323	normal	checkaction=context fails for non-copyable arguments

Testing this PR locally

If you don't have a local development environment setup, you can use Digger to test this PR:

dub fetch digger
dub run digger -- build "master + druntime#2841"

[PetarKirov]

Merging a the Lubeck failure at buildkite is unrelated.