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Package installation into a library where the package exists _via_ symbolic link now should work wherever ‘Sys.readlink()’ works, resolving PR#16725.
‘findMethod()’ failed if the active signature had expanded beyond what a particular package used. (Example with packages ‘XR’ and ‘XRJulia’ on CRAN.)
S4 values are automatically coerced to vector (_via_ ‘as.vector’) when subassigned into atomic vectors.