Fails with Lingua-EN-Sentence-0.30 (?)

[eserte]

The test scripts t/04-pdf_small.t and t/05-several_details.t fail with perl 5.25.1 and newer:

#   Failed test 'L::EN::S::O vs L::EN::S'
#   at t/04-pdf_small.t line 13.
#     Structures begin differing at:
#          $got->[8] = '2.'
#     $expected->[8] = '2. Materials and methods
#     2.1. Samples of sewage activated sludge and description of
#     sewage treatment systems
#     Activated sludge samples were collected from the aeration tanks of 12 sewage treatment systems.'
# Looks like you failed 1 test of 1.
t/04-pdf_small.t .............. 
Dubious, test returned 1 (wstat 256, 0x100)
Failed 1/1 subtests 

#   Failed test 'Section numbers'
#   at t/05-several_details.t line 14.
#     Structures begin differing at:
#          $got->[1] = '2.'
#     $expected->[1] = '2. Materials and methods
#     2.1. Samples of sewage activated sludge and description of
#     sewage treatment systems'
# Looks like you failed 1 test of 1.
t/05-several_details.t ........ 
Dubious, test returned 1 (wstat 256, 0x100)
Failed 1/1 subtests 

@andk: Looks like a git-bisect candidate.

[eserte]

My first analysis is wrong --- the tests may fail also for older perls. It seems that the failure is caused by Lingua-EN-Sentence-0.30, earlier Lingua-EN-Sentence versions are OK.