Method .copy(deep=False) fails to break references when values of the DataFrame/Series are lists
```python
# Your code here

```

#### Problem description

I recently tried to create a shallow copy of a pandas.Series that values where python lists. But when I tried to edit the copied series, the original series was affected as well.

```python
import pandas as pd

s = pd.Series({'foo': [1, 2, 3]})
s_copy = s.copy(deep=False)

s_copy['foo'] = [1, 2, 3, 4]
print(s)

```
This yields: foo    [1, 2, 3, 4]

#### Expected Output
As this is meant to be a shallow copy, that expected behavior is that the original Series shall not be affected: foo    [1, 2, 3]


#### Output of ``pd.show_versions()``

<details>

commit           : b5958ee1999e9aead1938c0bba2b674378807b3d
python           : 3.7.9.final.0
python-bits      : 64
OS               : Windows
OS-release       : 10
Version          : 10.0.19041
machine          : AMD64
processor        : Intel64 Family 6 Model 158 Stepping 12, GenuineIntel
byteorder        : little
LC_ALL           : None
LANG             : None
LOCALE           : None.None
pandas           : 1.1.5
numpy            : 1.20.0
pytz             : 2021.1
dateutil         : 2.8.1
pip              : 20.2.2
setuptools       : 56.0.0
Cython           : 0.29.21
pytest           : 6.1.1
hypothesis       : None
sphinx           : 3.2.1
blosc            : None
feather          : None
xlsxwriter       : 1.3.6
lxml.etree       : 4.5.2
html5lib         : None
pymysql          : None
psycopg2         : 2.8.5 (dt dec pq3 ext lo64)
jinja2           : 2.11.2
IPython          : 7.18.1
pandas_datareader: 0.9.0
bs4              : None
bottleneck       : None
fsspec           : 0.9.0
fastparquet      : None
gcsfs            : None
matplotlib       : 3.3.1
numexpr          : None
odfpy            : None
openpyxl         : None
pandas_gbq       : None
pyarrow          : None
pytables         : None
pyxlsb           : None
s3fs             : None
scipy            : 1.5.2
sqlalchemy       : 1.3.19
tables           : None
tabulate         : None
xarray           : None
xlrd             : 1.2.0
xlwt             : None
numba            : 0.51.2

</details>
