from_ attribute contains two tuples for one sender

[sgeulette]

Describe the bug
When headers['From'] = 'Adam, Valérie <valerie.adam@xxx.be>' , the produced from_ attribute contains [('', 'Adam'), ('Valérie', 'valerie.adam@xxx.be')]
This is a mail sent by office365

To Reproduce
Steps to reproduce the behavior:

1. import mailparser
2. mail = mailparser.parse_from_file(f)
3. print(mail.from_)
4. See error

Expected behavior
from_ value must be [('Adam, Valérie', 'valerie.adam@xxx.be')]

Raw mail
'Subject: test\nFrom: Adam, Valérie <adam.valerie@xxx.be>\nTo: yyy@xxx.be\nContent-Type: text/plain; charset="utf-8"\nContent-Transfer-Encoding: 7bit\nMIME-Version: 1.0\n\nmore\n'

Environment:

• OS: Linux
• Docker: no
• mail-parser version: 3.15.0

Additional context
nothing else