[BUG] Parquet column selection by name with schemas including list<struct<X, Y>> does not work.

If you have a schema that contains a list-of-struct, selecting a subset of the inner columns doesn't work. Example

`list>`
If the schema for this column was

```
A (list)
B (struct)
C (int)
D (float)
```
Attempting to select "A.B.C" would not work. I believe this is being caused by some schema preprocessing that we are doing that is injecting fake schema elements to ease schema interpretation. Essentially we see a schema that looks like this:

```
A (list)
list (the fake element
B (struct)
C (int)
D (float)
```
So "A.B.C" doesn't actually exist, only "A.list.B.C" and the code returns 0 columns.