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Weston PaceBenjamin Kietzman
3d496543a84
Weston Pace authored and Benjamin Kietzman committed 69824e37451
ARROW-14321: [R] segfault converting dictionary ChunkedArray with 0 chunks

Both dictionary arrays and struct arrays were relying on chunked arrays always having at least 1 chunk.

The fix also revealed a bug in arrow::Table::FromChunkedStructArray (the method was also expecting at least 1 chunk).

Closes #11428 from westonpace/bugfix/ARROW-14321--segfault-converting-no-chunks-in-r

Authored-by: Weston Pace <weston.pace@gmail.com>
Signed-off-by: Benjamin Kietzman <bengilgit@gmail.com>