auto_copy() throws an informative error on different sources (#6798)

  auto_copy(df, NULL)
  Error in `auto_copy()`:
  ! `x` and `y` must share the same src.
  i `x` is a <tbl_df/tbl/data.frame> object.
  i `y` is `NULL`.
  i Set `copy = TRUE` if `y` can be copied to the same source as `x` (may be slow).

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dplyr documentation built on Nov. 17, 2023, 5:08 p.m.