Failing to match number ranges with pattern declared in DEFINE block using PyPi regex package

Question

I'm using https://github.com/mrabarnett/mrab-regex (via pip install regex, but experiencing a failure here:

pattern_string =  r'''
        (?&N)
        ^ \W*? ENTRY              \W* (?P<entries>    (?&Range)    )     (?&N)

        (?(DEFINE)
             (?P<Decimal>
                 [ ]*? \d+ (?:[.,] \d+)? [ ]*?
             )
             (?P<Range>
                 (?&Decimal) - (?&Decimal) | (?&Decimal)
                 #(?&d) (?: - (?&d))?
             )
             (?P<N>
                 [\s\S]*?
             )
        )
    '''

flags = regex.MULTILINE | regex.VERBOSE  #| regex.DOTALL  | regex.V1 #| regex.IGNORECASE | regex.UNICODE

pattern = regex.compile(pattern_string, flags=flags)

bk2 = f'''
ENTRY: 0.0975 - 0.101
'''.strip()
match = pattern.match('ENTRY: 0.0975 - 0.101')
match.groupdict()

gives:

{'entries': '0.0975', 'Decimal': None, 'Range': None, 'N': None}

It misses the second value.

> pip show regex
Name: regex
Version: 2022.1.18
Summary: Alternative regular expression module, to replace re.
Home-page: https://github.com/mrabarnett/mrab-regex
Author: Matthew Barnett
Author-email: [email protected]
License: Apache Software License
Location: ...
Requires:
Required-by:

> python --version
Python 3.10.0