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A general description is here.
‘all(<symbol>)’ signal an error now, as other such coercions; previously, the coercion of the symbol to logical resulted in ‘NULL’ internally, raised a warning, and could access illegal memory; thanks to Kevin Ushey's PR#19054.
‘as.data.frame.vector(<row.names_w/_NA>)’ now signals the same error as ‘data.frame()’, fixing Hervé Pagès' PR#19059. From Suharto Anggono's comment #c4, it gives the same error also when ‘row.names = RN’ explicitly, where ‘RN’ has ‘NA’s.