Unexpected CSV to table conversion

[Unknow0059]

Expected:

—Case 1 (without comma)
a b c d: "1" or "2" or E F G: H
                   ↓
|a b c d: "1" or "2" or E F G: H|


—Case 2 (with comma)
a b, c d: "1" or "2" or E F G: H
                  ↓
| a b | c d: "1" or "2" or E F G: H |

Actual output:

—Case 1 (without comma)
a b c d: "1" or "2" or E F G: H
                   ↓
| a | b | c | d: | 1 | or | 2 | or | E | F | G: | H |

—Case 2 (with comma)
a b, c d: "1" or "2" or E F G: H
                   ↓
| a | b, | c | d: | 1 | or | 2 | or | E | F | G: | H |