.struct.field('*') PanicException: no rename_alias at this point

[cmdlineluser]

Checks

• I have checked that this issue has not already been reported.
• I have confirmed this bug exists on the latest version of Polars.

Reproducible example

import polars as pl

df = pl.DataFrame({'A': [1]})

df.select(pl.struct('A').struct.field('*').name.prefix('foo_'))
# PanicException: no `rename_alias` expected at this point

Log output

No response

Issue description

I'm not sure if this is supposed to work or not.

We can prefix the fields first:

df.select(pl.struct('A').name.prefix_fields('foo_').struct.field('*'))
# shape: (1, 1)
# ┌───────┐
# │ foo_A │
# │ ---   │
# │ i64   │
# ╞═══════╡
# │ 1     │
# └───────┘

Expected behavior

No PanicException.

Installed versions

--------Version info---------
Polars:               0.20.27
Index type:           UInt32
Platform:             macOS-13.6.1-arm64-arm-64bit
Python:               3.12.2 (main, Feb  6 2024, 20:19:44) [Clang 15.0.0 (clang-1500.1.0.2.5)]

----Optional dependencies----
adbc_driver_manager:  <not installed>
cloudpickle:          <not installed>
connectorx:           <not installed>
deltalake:            <not installed>
fastexcel:            <not installed>
fsspec:               <not installed>
gevent:               <not installed>
hvplot:               <not installed>
matplotlib:           <not installed>
nest_asyncio:         <not installed>
numpy:                1.26.4
openpyxl:             <not installed>
pandas:               2.2.1
pyarrow:              15.0.2
pydantic:             <not installed>
pyiceberg:            <not installed>
pyxlsb:               <not installed>
sqlalchemy:           <not installed>
xlsx2csv:             <not installed>
xlsxwriter:           <not installed>