Under the hood
Plugin install helper gains a preview option, and marketplace installs reuse an already-resolved registry lookup
What
The internal helper that materializes (installs and links) plugins now accepts a new preview option, off by default, alongside its existing linkFarm/linkFarmProducer options. Separately, when installing a plugin from a marketplace entry, the code now reuses an already-resolved registry lookup to find the marketplace directory instead of performing a second, separate lookup.
Why
These are internal groundwork changes; the preview option's effect isn't described, and the marketplace-lookup change is a small efficiency cleanup rather than a behavior change.
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The writer flagged doubt
What the new preview option actually does when enabled is not stated in the finding.